Yaws is recognized by the World Health Organization (WHO) as 1 of the 20 Neglected Tropical Diseases (NTDs), a group of communicable diseases that have subsisted in tropical and subtropical environments, and that affect people living in poor and marginalized societies [1]. Yaws also form part of a group of chronic bacterial infections, commonly known as the endemic trepanomatoses. These diseases are caused by a spiral bacteria of the genus Treponema, which also includes bejel and pinta, being yaws the most common [2]. Like syphilis, yaws have been described in three stages; primary stage characterized by granulomatous skin lesions, secondary stage by generalized spread, and tertiary stage by chronic destructive disease of skin, cartilages and bones [3].

Microchimerism is a bidirectional exchange of fetal and maternal cells during pregnancy (Figure 1). Pregnancy is the most common and natural cause of chimerism, and bi-directional trafficking of hematopoietic cells occurs through the placenta. Therefore, we are all born as microchimera [1,2]. Although there are many unanswered questions it is thought that chimerism has an important role in human health. For many years, the clinical effects of maternal microchimeric cells (MMcCs) in organ repair and cancer therapy have just begun to be understood. While the mission of chimerism is straight forward, the subject is profound. Chimerism carries the potential for disease as well as for health benefits. Recent studies have shown that maternal stress and infections in pregnancy affect fetal neuro development and increased the risk of neurological or psychiatric disorders in the future life of the fetus. This article describes the role of Mc in the etiology of psychotic disorders.

Covid-19 infection is caused by the coronavirus SARS-CoV-2. This has resulted in the present pandemic from which thousands of people have died including many front-line health care workers. Of the surgeons who have died from covid-19 it would appear that otorhinolaryngology surgeons have made the largest sacrifice (Figure 1) [1].

In COVID-19 pandemic we focused on epidemiology and somewhat we neglect the possibility of biochemical influencing of the infection. Therefore we try to find some properties of the virus, which are impressionable by drugs. Droplet infection transmission is mainly (hypochloric acid) by nose and mouth. Diseases of nose and paranasal sinuses are most often of viral or bacterial origin.

Viral transmission of SARS-CoV-2, the virus causing COVID-19 is very high within households despite self isolation [1,2]. Transmission of the virus is thought to be similar to that of influenza. Virus is shed into respiratory secretions which can be transferred through coarse droplets or fine aerosol released when a person coughs, sneezes or talks. These droplets/aerosols may infect another either by direct contact with the mucous membranes or through fomite transmission. 

WHO declared the coronavirus disease 2019 (COVID-19) outbreak, caused by SARS-CoV-2, to be a pandemic on March 12, 2020. In Morocco, the first case was reported in March 2nd 2020. The mental health of general population, medical and nursing staff especially has been greatly challenged. The aim of the present article is to explore the stress status of medical and nursing staff associated with exposure to the COVID-19. The medical staff was asked to complete a self-reported questionnaire anonymously. In University Hospital Mohamed VI, in Marrakesh, Morocco. During May 2020. In total, 120 valid questionnaires were collected. Among them, there were 57 residents (47,5%), 30 internes (25%), 22 nurses (19%) and others: medicine students and technical staff. The age was between 23 and 60 years. 15% of professional lived alone, 85% with their family, 74% lived with an old person or with a person having a chronic disease. In our study: the severity of symptoms in 36% of the asked professional, deaths among health professionals in 15%, death of a family member in 14%, the rapid spread of pandemic in 90%, the lack of knowledge in 83%, and finally contamination risk especially if comorbidity associated in 2%. Further risk factors: feelings of being inadequately supported by the hospital in 42%, fear of taking home infection to family members or others in 80%, being isolated, feelings of uncertainty and social stigmatization in 43%. The psychological presentation was the nightmare 19 in %, the insomnia in 48%, the somatization in 18%, the irritability in 22%, the aggressiveness in 14%, the nervousness in 70% and the drowsiness in 5%. During the vulnerability of the individual’s conditions during and after the COVID-19, psychological intervention should be done and a mental health support for the health professional.

Visual impairment is a global health problem. Cataract is responsible for 50% of blindness worldwide [1]. Posterior capsular opacification is the most common late complication of cataract surgery as a result of proliferation of residual lens epithelial cells overall 25% of patients undergoing extra-capsular cataract surgery develops visually significant PCO within 5 years of the operation [2]. Nd: YAG laser provides the advantage of cutting the posterior lens capsule, thereby avoiding and minimizing infection, wound leaks, and other complication of intraocular surgery. Thus Nd:YAG laser capsulotomy is noninvasive, effective and relatively safe technique [3]. However, this procedure is associated with complications such as- postoperative increased intraocular pressure (IOP), cystoid macular edema (CME), disruption of the anterior vitreous surface, uveitis, lens subluxation, increased incidence of retinal detachment and pitting of the IOL [4]. Laser shots can be applied in several patterns such as “Cruciate or Cross pattern”, “Can opener”, inverted “U-Method” and in a “Circular pattern”. Many authors promote the use of a cruciate pattern in the Centre of the visual axis, with the clinician starting off on both axes away from the Centre to avoid pitting the lens centrally [5]. This study mainly aims to analyze the effect of various forms of PCO capsulotomy openings on visual function after Nd: YAG capsulotomy.

Coronavirus disease 2019 (COVID-19) had affected both developed and developing countries too. The first case in Nepal was confirmed on 23 January 2020. It was also the first recorded case of COVID-19 in South Asia. Nepal reported its first COVID-19 death on May 16. At the end of October, the number of death stood 937 and 1126 on 9 November. In September and October, deaths doubled, and with winter setting in, fatalities may skyrocket. Among the total CP cases in Nepal nearly 50% are from the Capital Kathmandu. So, Kathmandy is the new epicenter of COVID-19 in Nepal. There are no proper community-based isolation centres and ICU beds are also still limited. Due to increasing trend of COVID-19 cases and death people have fear of psychological stress. A study shows at least one symptom of psychological distress whereas 32% suffered from two or more symptoms of psychological distress such as restlessness, fearfulness, anxiety and worry and sadness. Despite limited resources, the government’s major challenges are early diagnosis, management of confirmed cases, contact tracing, and implementing some public health measures to reduce the infection’s transmissibility.

Purpose: We have studied in 18-month 21 patients showing kerato-conjunctivitis and/or dermato-blefaritis, where we will find a constant presence of mycoplasma in SEM optical cytology samples. The 21 patients were divided as follows: 7 allergic, 7 alleged allergic and 7 not-allergic, this division it makes between a clinical approach considering clinical history and symptoms. At the first examination, 16 of the 21 patients had a single or multiple infection in which the main pathogenic element was found to be Mycoplasma; the remaining 7, 4 of them were suspected allergic patients, 2 of it, were allergic subjects with the presence of eosinophils or mast cells. Material and methods: All the study is constructed on citological optical microscopy and citological electron scanning microscopy (SEM) images for demonstrate the efficacy of the SEM in clinical approach at allergic, not allergic and suspected allergic patients. Therapeutic treatment and Results: Treatment of the allergic and false allergic patients has made with local somministration of galenic composition with ialuronic acid 3 ml and Tetracycline hydrochloride 30 mg and with low level of cortisone and antisthaminic therapy. This treatment is necessary to eradicate the Mycoplasma infection and counteract toxic action of this pathogen on mucosa. Discussion: After appropriate therapy we note that allergic patients have a greater predisposition to redundancy in infections in the short period (minimum 20 days), while alleged allergic patients have more prolonged infection periods (between 3 and 5 months), with constant presence at low levels of persistent Mycoplasma. The latter continue to show signs and symptoms similar to allergic patients, but with a negative test for tear IgE and absence of eosinophils and/or mast cells, in the optical and SEM samples displayed.

The Nd-Yag L has been developed in Europe since the mid-1970s [10]. Today Nd-Yag LPC has become an established procedure for after cataract. Before the Nd-Yag L came into use, the capsulotomy was done by performing a small puncture with a needle knife or 27 gauge needle, either at the time of original operation or as a secondary procedure through the limbus in aphakic or through pars plana in pseudophakic. The Nd-Yag L preferred because it is non-invasive and infection cannot occur. The most important complication is a transient rise in IOP 1-3 hrs of Nd-Yag LPC [1]. Occasionally the pressure rise is high and can cause serious damage to the optic nerve, so that the IOP should be monitored and appropriate measures should be taken if necessary. Only if we can minimize its frequency or, better still, avoid it, altogether, can we accept Nd-Yag L as a safe procedure in our effort to restore vision. In otherwise normal eyes, a mild elevation of IOP is of no consequence because it usually resolves within 24 hour especially when the patient receives anti-glaucoma drugs before and after laser application. However in eyes with pre-existing glaucoma, the incidence of IOP elevation is higher and its duration is longer than in otherwise normal eyes. Some glaucomatous eyes may therefore require additional glaucoma therapy for several weeks following Nd-Yag LPC [3]. So monitoring is particularly important in the cases of glaucoma with optic nerve damage and field loss as these eyes are susceptible to small pressure rises for even a short period. A single rise to 40mmHg for a few hours can cause irreversible damage to the damaged optic nerve and lead to permanent visual loss or even blindness [1]. The purpose of this study is to evaluate the changes in IOP at 1hour,24hour and 1 week after Nd-Yag LPC.

Background: Corneal abrasions are a common result of eye trauma. Corneal injuries are very common in both the adult and pediatric population and account for a significant proportion of the workload of most emergency departments. Although abrasion heals well with preservative treatment, it still causes pain and job lost. The abrasion result from the scrabble of the corneal epithelium. These injuries cause pain, tearing, lids spasm, light scare, foreign body sensation, decreased visual acuity/blurring, and a gritty feeling. The light, friction & wink was worse the condition. Most abrasion cure within 24-27 hours and seldom proceed to erosion or infection. The study aims to use bandage soft contact lens [BSCL] as a primary treatment for traumatic corneal abrasion [TCA] instead of traditionally use pressure patch [PP]. Patients and methods: The present prospective study has been conducted on 50 patients attending the out-patient department of ophthalmology in an Alyarmouk teaching hospital for six months after taking ethical permission. Before subjecting the patient to the treatment of bandage soft contact lens therapy, a detailed clinical history and thorough local examination have been done. A history indicating the occurrence of recent ocular trauma followed by severe pain, redness, lids spasm, photophobia, and tearing of the involved eye is suggestive of a corneal abrasion. Always we ask about contact lens wear as this can complicate the presence of an abrasion. To confirm the diagnosis of traumatic corneal abrasion we examine the cornea by slit-lamp under cobalt-blue filtered light after the application of tetracaine eye drops & fluorescein strips. The treatment of 50 consecutive patients presenting with traumatic corneal abrasion has been treated with anesthetic eye drop (tetracaine 0.5%) to relieve pain and lids spasm, antibiotic eye drop (ofloxacin 0.3%), therapeutic bandage soft contact lens was applied to provide pain relief and once again act as a splint to promote epithelial healing, then visual acuity was measured by Snellen chart, a cycloplegic eye drop (cyclopentolate 1%) was applied to relieve ciliary spasm & then preservative-free lubricant eye drop were applied lastly. This criterion dramatically relieves most, if not all of the pain the patient may be experiencing (which is a big plus for the patient and earns instantaneous trust), but it also allows the patient to return to work/school or any other daily activities. Patients have been evaluated after 24hours, 72hours and after 1week regarding pain, visual acuity, and complications. Though pressure patch [PP] occasionally advice in abrasion therapy, it does not assist and may prevent recovery. Employ the protective eyewear can preclude the traumatic corneal abrasion. Results: A total of 50 cases were enrolled in our study during the study period of 6 months. Out of 50 patients, there were 30males and 20 females and the male/female ratio was 3:2. The patient’s age was ranged from 5-35years. The commonest cause of injury was direct minor trauma (80% of cases), with cosmetic & optical contact lenses related problems accounting for 20% of presentations, visual acuity was documented correctly in 90% of adult and pediatric group and difficult to documented in children less than 6-year-old 10%. Traumatic corneal abrasion treated with bandage soft contact lens has an apparent advantage over the traditional pressure patch in terms of reduced pain, speedier healing, and an advantage of faster rehabilitation, facilitation epithelial healing, and proper surface hydration. Evaluation of pain revealed sufficient comfort with this regimen, allowing 45 patients (90%) to go back immediately to their occupations. Moreover, visual function is retained without any complication. Healing of the traumatic corneal abrasion occurred within 1 to 3 days in all patients, with minimal or no pain. The infection did not occur at the time of the follow up. We remove the bandage soft contact lens after 1 week to allow epithelial migration and attachment without the interference of the shearing forces of the upper lid. Conclusion: The use of bandage soft contact lens as a primary treatment for a traumatic corneal abrasion is a safe and effective method with anesthetic eye drop (tetracaine 0.5%), antibiotic eye drop (ofloxacin 0. 3%), cycloplegic eye drop (cyclopentolate 1%), preservative-free lubricant drop instead of traditionally pressure patch. Bandage soft contact lens causes dramatic improvement from pain, lid spasm, tearing & visual function is retained without any complication, and patients can immediately resume their regular activities.

Background: Hypertension is the leading cause of cardiovascular diseases and premature deaths. Hypertension plays a striking role in mortality and morbidity in case of Coronavirus Disease 2019 (COVID-19) infection; however, numerous studies have reported contradictory findings. Objective: To assess the relationship of hypertensive disease and mortality of COVID-19 infection and to assess the sex and age differentials on the association. Methods: We have conducted a systematic review of published literatures that identified the relationship between hypertension and mortality of COVID-19 infections. Nineteen articles were selected following structured inclusion and exclusion criteria for systematic review and analyses. A total of 21,684 hospital admitted COVID-19 patients were included in this review and meta-analysis from 19 studies. The studies covered the six months of the pandemic from December 2019 to May 2020. Results: In the pooled analysis, the median age of patients was 58 years, and the proportion of male patients was 58.8%. In contrast, we estimated 33.26% of hypertensive and 19.16% of diabetes mellitus patients in the studies. Hypertension was found to be associated with COVID-19 mortality (“Risk ratio (RR) = 1.45, [95% confidence interval (CI): 1.35 - 1.55]; I2 = 77.1%, p - value < 0.001”). The association in the meta-regression was affected by sex (p - value = 0.050). The association was found to be stronger in the studies with males ≥ 55% and age ≥ 55 years (“RR = 1.65, [95% CI: 1.52 - 1.78]; I2 = 77.1%, p - value < 0.001”) compared to male < 55% or age < 55 years (“RR = 1.11, [95% CI: 0.94 - 1.28]; I2 = 72.2%, p - value < 0.001”). Conclusion: Hypertension was significantly strong associated with COVID-19 mortality which may account for the contradiction in the many studies. The association between hypertension and mortality was affected by sex and there were significantly higher fatalities among older male patients. 

Background: Klebsiella pneumoniae is a bacterial species that often causes infections in humans. Infections occur most frequently in hospitalised or immunocompromised patients and are treated with antimicrobials. In recent decades, K. pneumoniae has developed significant resistance to many antimicrobials. Objective: The main goal of this study was to determine the frequency of resistance of isolated K. pneumoniae strains from urine samples of hospital patients and outpatients, and to find evidence of ESBL strains and their resistance to certain antibiotics. Methods: During the study period, Klebsiella pneumonia was isolated from the urine samples of 430 patients. The procedure for processing of urine samples, identification, susceptibility toward antimicrobials and evidence of ESBL strains were carried out according to the recommended standards. Results: Of the total K. pneumoniae isolates, 153 (35.6%) were isolated from hospital patients and 277 (64.4%) from outpatients. Strains isolated from hospital patients were resistant to each tested antibiotic. ESBL strains were detected in 169 (39.30%) samples, 92 (60.13%) from hospital patients and 77 (27.8%) from outpatients. Conclusion: Strains of K. pneumoniae isolated from the urine of hospital patients and outpatients have developed significant resistance against all tested antibiotic substances. A higher occurrence of ESBL strains was observed in hospital patients than in outpatients. ESBL strains were resistant to all penicillins and almost all cephalosporins. Highly effective antimicrobials were amikacin, colistine, carbapenem and fosfomycin. The best therapeutic results were achieved when patients were treated with fosfomycin and imipenem.

German surgeon, Vincenz Czerny, transplanted a patient’s own lipoma located in the hip to it’s breast after gland excision due to mastitis in 1895. Dr. Vincenza reported that for at least a year he didnt observe any problem on the operated breast [1]. Injection of adipose tissue to the breast has been used in breast cancer patients during breast reconstruction and lumpectomy. And in cases of revision autologous tissues are used for reconstruction. In clinical practice, many breast cancer patients apply to the clinics mostly after radiotherapy for reconstruction. Rigotti et al used purified autologous lipoaspirates in breast cancer patients with late term complications of radiation therapy and observed increase in neovascularization and wound healing [2]. Panettiere and colleagues compared aesthetic and functional features of fat grafts in radiotherapy received breast cancer patients and control group. In the fat graft group, all clinical symptoms and aesthetic scores were significantly higher than the control group [3]. In plastic surgery especially after the surgical treatment of breast cancer, prosthetic techniques, various autologous flaps or combinations of both are performed for breast reconstruction. Particularly breast reconstructions following adjuvant radiotherapy have less success rates due to adverse effects of radiotherapy [4-10]. There are reports showing reduced complications rates with use of fat grafts before and after breast reconstruction with prosthesis in patients received radiotherapy after lumpectomy or mastectomy. With that, in patients receiving radiotherapy after fat grafting, local complications such as fat necrosis, infection can be seen more [3,11]. It was reported that adipocytes may had paracrine and endocrine interactions with tumor cells and stromal elements [12]. The fat grafts used in breast cancer were thought to cause local recurrence, distant metastasis or development of new cancers; there was no relationship in the clinical series. There is aromatase activity in the adipose tissue. Thus, fat tissue is the main source of post-menopausal estrogen hormone. Tumor cells and surrounding tissue were found to be higher in aromatase activity. Therefore, when fat tissue is injected subcutaneous or under the gland rather than into the parenchyma local recurrence risk is low [2]. When fat tissue is injected to breast, a good physical examination and mammography should be performed. After fat injection, sometimes calcifications are formed as a result of undergoing necrosis and they interfere with malignancy. Therefore before and after the procedure, mammography must be taken for comparison and existing and or newly developed calcifications should be determined.

Background: Patients with chronic kidney disease (CKD) are at the risk of increase hospital admission as compared to the general population, due to various reasons. They have increased vulnerability to cardiovascular diseases (CVD) as well as infections, therefore they usually got admit in health care units due to various reasons. The causes of hospitalization in CKD patients in this part of the world are not studied well. Methods: This cross sectional study was conducted in The Kidney Centre Post Graduate Training Institute (TKC-PGTI) of Karachi. Variables included in the study were age, gender, are of residence, ethnicity, smoking status and level of education. Comorbid conditions like causes of CKD and causes of hospitalization. Data analysis performed by using software IBM SPSS 21. Results: Total of 269 patients were enrolled in our study. The male 148(55%), mean age was 55 years. The most common cause of hospitalization in our population was infection148 (55%) and urinary tract infection (UTI) was the most common site of infection 55 (20%) followed by sepsis of unknown origin 29(10.8%). Cardiovascular events like volume overload 32 (11.4%) and acute coronary syndrome 20(7.4%) were the second most important cause of hospitalization. Conclusion: Hospitalization of CKD patients is high, and in our population infection is found to be the leading cause of hospital admission. Infection originating from urinary tract is more common in all stages of CKD patients, while blood born infection originating from double lumen (DL) dialysis catheter or arteriovenous fistula (AVF) cannulation is more common in dialysis population. Cardiovascular events, both acute coronary syndrome and pulmonary edema due to volume overload followed the infections.

Cement-retained implant-supported restorations has been preferred by many clinicians due to its ease of production, low cost and similarity to dental supported restorations [1]. In the literature, many complications caused by residual cement, ranging from acute severe bone resorption to implant loss, have been published as a case report/ series [2-7]. In another study [8], residual cement was seen in 81% of implant cases that are clinically identified as peri- implantitis. Hence it has been indicated that a strong relationship has been determined between residual cement and development of chronic peri-implant infection [9].

Internal jugular vein catheters (IJC) is recommended as the central venous access of choice in haemodialysis patients. However it is associated with complications of variable severity. Objectives: To study the complications associated with internal jugular vein catheters in haemodialysis patients in southern part of Nigeria. Methodology: The clinical details of patients who had IJC insertion at the kidney house, Hilton clinics Port Harcourt from 1st October 2011 to 30th September 2016 were documented. Complications from the IJC developed by the patients during the study period were also documented. The data obtained was analyzed using SPSS version 22. P value less than 0.05 was considered significant. Results: A total of 129 patients had 150 internal jugular catheter insertions. The mean age was 51.4±15.2 years with male to female ratio of 1.5:1. All the patients had chronic kidney disease; about 80% had tunneled IJC and 96.9% of the catheters were inserted in the right internal jugular vein. Immediate complications were recorded in 10% and late complications in 34.9% of the procedures. The immediate complications were kinking of guide wire (2%), arterial puncture (1.3%) and difficulty in locating the internal jugular vein (1.3%) or tunneling (1.3%). The late complications were infection (12.8%), poor blood flow (9.2%), bleeding (5.5%) and spontaneous removal of the catheter (5.5%). There was no statistical significant difference in both immediate and late complication with age and sex. The ultrasound examination at discharge had a sensitivity of 31% and specificity of 87% to detect future symptomatic lymphoceles. The positive predictive value was only 10%. The second ultrasound test had the best test variables to detect symptomatic lymphoceles with a sensitivity of 93% and a specificity of 87% and a predictive value of 28%. Conclusion: Internal jugular catheter is froth with immediate and late complications in haemodialysis patients.

Background: Hyperuricosuria, persistently low urinary pH, and low urinary volume are the main risk factors of uric acid nephrolithiasis. Epidemiologic studies suggest that high water intake is protective against the occurrence of symptomatic kidney stone events of all types. The objective of this systematic review and meta-analysis were to evaluate the effectiveness of increased water intake to prevent symptomatic uric acid kidney stone events. Methods: Seventeen studies were identified for the meta-analysis. Analysis of Q and I2% statistics revealed that a high heterogeneity in 16 studies, thus, random effects model was used. Protective associations were identified for high water intake individuals (SMD=0.52 L; 95% CI: 0.19, 0.84; p=0.002); a significantly decreased relative super saturation of uric acid versus controls (SMD=-1.15; 95% CI: -2.00, -0.30; p=0.008). Risk factors including urinary uric acid excretion and pH were not significantly related to high water intake (SMD=7.32mg/d, 95% CI: -52.27, 66.91; p=0.81), (SMD=0.14; 95% CI: -0.02, 0.31; p=0.09), respectively. Further subgroup analyses revealed that urinary uric acid excretion was significantly decreased in healthy individuals (SMD=-36.23 mg/d, 95% CI: -65.14, -7.31; p=0.001) compared to stone formers (SMD=27.41 mg/d, 95% CI: -33.18, 88.01; p=0.38); urinary uric acid excretion was significantly decreased in routine water intake groups (SMD=-61.49 mg/d, 95% CI: -120.74, 12.24; p=0.04) compared to mineral water intake groups (SMD=44.50 mg/d, 95% CI: -18.30, 107.29; p=0.16); urinary pH was significantly higher in mineral water groups (SMD=0.13, 95% CI: 0.01, 0.46; p=0.04) compared to regular water groups (SMD=-0.00, 95% CI: -0.13, 0.13; p=0.98). Results: A total of 129 patients had 150 internal jugular catheter insertions. The mean age was 51.4±15.2 years with male to female ratio of 1.5:1. All the patients had chronic kidney disease; about 80% had tunneled IJC and 96.9% of the catheters were inserted in the right internal jugular vein. Immediate complications were recorded in 10% and late complications in 34.9% of the procedures. The immediate complications were kinking of guide wire (2%), arterial puncture (1.3%) and difficulty in locating the internal jugular vein (1.3%) or tunneling (1.3%). The late complications were infection (12.8%), poor blood flow (9.2%), bleeding (5.5%) and spontaneous removal of the catheter (5.5%). There was no statistical significant difference in both immediate and late complication with age and sex. Conclusion: This meta-analysis identified evidence that urinary uric acid excretion, volume, pH and relative supersaturation of uric acid can be altered with high water intake intervention, reducing the risk of uric acid kidney stones.

Maxillofacial defects are very common and can be due to congenital defect, trauma, infections and neoplasms of facial region. These defects can be restored using different materials and retention methods to give a life like appearance. Rehabilitation of facial defect is a very challenging task. Every good prosthesis needs a skillful hand and it all starts with making a good impression of that defect and to proceed with the same. The aim of present paper was to present a simplified approach for the fabrication of custom tray to take facial impression of the patient with maxillofacial defect.

Bronchiolitis obliterans (BO) is an infrequent clinical syndrome characterized by the chronic obstruction of small airways due to fibrosis [1]. Intravenous immunoglobulin (IVIG) could be used for treatment while underlying immune mechanisms in the pathogenesis of BO exist [2]. Here, we present two children with BO due to adenovirus infection whose complaints resolved after IVIG replacement.