Background The pandemic of coronavirus disease (COVID-19) has caused huge number of patients admitted to intensive care units (ICUs) in a critical need to mechanical ventilation. Ventilator associated pneumonia (VAP) has been noticed as a common complication in these patients with unfavorable outcomes. The current study aimed to assess bacterial and fungal VAP in COVID-19 patients admitted to ICUs during the second wave and to identify the possible risk factors. Methods Respiratory samples were collected from 197 critically ill COVID-19 patients under mechanical ventilation. Bacterial and fungal superinfections were diagnosed by microbiological cultures with subsequent antimicrobial susceptibility testing of the isolates using available kits. Results All specimens 197/197 (100%) were positive for bacterial infections, while fungal elements were detected in 134/197 (68%) of specimens. The most frequently isolated bacteria were pan drug resistant (PDR) Klebsiella pneumoniae (41.1%), followed by multi drug resistant (MDR) Acinetobacter baumannii (27.4%). On the other hand, Candida species represented the most frequently isolated fungi (75.4%) followed by molds including Aspergillus (16.4%) and Mucor (8.2%) species. Possible risk factors for fungal VAP included underlying diabetes mellitus (95% confidence interval [CI] 1.09−3.31; p = 0.02), chest disease (95% CI 1.01−3.32; p = 0.05), hypothyroidism (95% CI 1.01−4.78; p = 0.05), and longer duration of mechanical ventilation (p < 0.001). Furthermore, all patients 134/134 (100%) who developed fungal VAP, were already under treatment with corticosteroids and Tocilizumab. Conclusion Bacterial and fungal VAP in critically ill COVID-19 patients is a serious problem in the current pandemic. Urgent and strategic steps to keep it under control are compulsory.

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BackgroundHepatitis C virus (HCV) infection has received much attention and is placed at the core of the infection control agenda. It is considered as a major public health problem in Egypt, where the highest prevalence of HCV exists. The great risk of exposure to infection of health care providers (HCPs) has highlighted the urgent need for implementing an infection control program.ObjectiveThe purpose of this study was to detect the prevalence of HCV infection among HCPs in Zagazig University Hospitals and to assess the performance of different diagnostic modalities.MethodologyBlood, polymerase chain reaction (PCR), enzyme-linked immunosorbent assay (ELISA), and saliva tests were performed in enrolled HCPs.ResultsThis study compared HCV diagnosis Hepanostika HCV Ultra ELISA as a screening test and PCR as gold standard test, which resulted in 40.6% positive results by ELISA compared to 34.8% by PCR (p<0.0001), while OraQuick HCV rapid antibody compared to PCR shows that 37.7% of the participants were positive by OraQuick HCV rapid antibody test. Application of standard precautions while dealing with blood has negative significant correlation with HCV infection (rs=−0.265, p=0.03).ConclusionHCPs at Zagazig University Hospitals are at high risk for HCV infection. Lack of compliance and awareness of prevention and control of the infection are associated cofactors. Serum HCV-Ab detection by Hepanostika HCV Ultra ELISA and OraQuick HCV rapid antibody test are sensitive and specific serologic assays for diagnosis with correspondent results to that obtained by quantitative real-time PCR.

Regulatory T (Treg) cells are the chief player in induction of autotolerance and the transcription factor, Forkhead Box P3 (Foxp3), is the master regulator of their development and function. Polymorphisms in Foxp3 locus affect Foxp3 expression and can influence Treg cell function. This study aimed to determine the frequency of -3279C/A and -924A/G polymorphisms in the promoter region of the Foxp3 gene in Egyptian rheumatoid arthritis (RA) patients in comparison to apparently healthy controls, to test their association with Foxp3 serum levels as well as with patients’ clinical and laboratory features. Also, to evaluate Foxp3 serum level as a putative measure of Foxp3+ Treg cells-mediated immune regulation and disease activity. A total of 136 subjects (68 RA patients and 68 controls) were studied for determining the frequency of both -3279 C/A and -924 A/G polymorphisms in the Foxp3 promoter region by PCR-RFLP and measuring their Foxp3 protein serum levels by ELISA. Our results indicated that; -3279 Foxp3 CA and AA genotypes were significantly higher in patients than controls (OR (95% CI) = 2.86 (1.31-6.26) and 2.79 (1.11-7.07), P= 0.008 and p = 0.03, respectively). Similarly, -924 AG genotype was significantly higher in patients than controls (OR (95% CI) = 2.92 (1.35-6.34); P=0.006). A significantly higher risk of RA was associated with the Foxp3 polymorphic variants -3279 A and -924 G. There was a statistically significant elevation in Foxp3 serum levels among patients, which was positively correlated to disease activity score and disease grade. In conclusion, Foxp3 polymorphisms influenced the risk of developing RA, but did not influence disease severity or activity. Serum level of Foxp3 is not a reliable indicator of Treg-mediated immune regulation in RA patients.

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Background: Candida infection is a world wide problem with greatly changed epidemiology. Candida dubliniensis is an emerging non-albicans, shares several phenotypic and genotypic characteristics and closely related to Candida albicans. Fluconazole-resistant Candida spp. becomes a significant life-threatening problem especially in high risk patients. Echinocandins are promising antifungals with no recorded resistance. This study was done, first to differentiate C. dubliniensis from C. albicans by different phenotypic and molecular methods and to compare in vitro activities of echinocandins versus azoles against Candida spp.

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Background: Cancer immunotherapy became a promising alternative to old therapeutic options in hepatocellular carcinoma. DC-DRibbles vaccine has clinical applications across a broad range of malignancies. Objective: To compare the efficacy of subcutaneous and intranodal routes of injection of Dendritic Cells-DRibbles immunotherapy in HCC induced mice. Methodology: This experimental study was conducted on 24 BALB/c mice. Healthy as negative control and cancer induced. The later was subdivided into two groups: positive control group and vaccinated groups (A and B) according to route of administration. Results: The mean of percentage of tumor volume reduction was 92.76% in DC+ Dribbles intranodal group (B), which was better than mean of percentage of change in subcutaneous group (A) which was 90.87%. Conclusion: DC-Dribbles vaccine was effective as HCC immunotherapy, both subcutaneous and intra nodal routes had comparable results. This study recommends subcutaneous route over intranodal route immunotherapy; it is simple, less invasive and effective.