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001). All adenoviral conjunctivitis cases were reported 6-27 days (mean 12 days) after ophthalmoscopy. The hydrogen peroxide disinfection bundle measures can effectively restrict the prevalence of adenoviral conjunctivitis associated with ophthalmoscopy in premature infants.Previous researches on the association between proton pump inhibitors (PPIs) use and the treatment and prevention of COVID-19 has generated inconsistent findings. Therefore, this meta-analysis was conducted to clarify the outcome in patients who take PPIs. Eight articles with more than 268,683 subjects were included. PPI use was not associated with increased or decreased risk of COVID-19 infection (OR3.16, 95% CI=0.74-13.43, P=0.12) or mortality risk of COVID-19 patients (OR=1.91, 95% CI=0.86-4.24, P=0.11). While it can add risk of severe disease (OR=1.54, 95% CI=1.20-1.99, P less then 0.001;) and secondary infection (OR=4.33, 95% CI=2.57-7.29). In summary, PPI use is not associated with an increased risk of infection and may not change the mortality risk of COVID-19, but appeared to be associated with an increased risk of progression to severe disease and secondary infection. However, more original studies to further clarify the relationship between PPI and COVID-19 are still urgently needed.The correct and rapid diagnosis of COVID-19 is vital for proper care and identification of affected individuals. This led to the early availability of many serological assays in the market but with limited validations. This study aimed to assess the validation of the serological assays based on different techniques. We evaluated fifteen assays based on four different immunoassay techniques on 235 patients. The most sensitive kit employing different techniques were as follows immunochromatography (Zybio SARS CoV-2 IgM/IgG Antibody Assay Kit 83%), ELISA (Aeskulisa SARS-CoV-2 NP IgG -88.1%), chemiluminescence (Alinity SARS-CoV-2 IgG - 82.2%) and immunofluorescence (Lifotronic FA160 [Shenzhen SARS-CoV-2 Assay Kit (IgG)] -88.9%). 100% specificity was seen in kits by Uniper (Singuway Biotec COVID-19 IgM/IgG Presumptive Kit), Genrui 2019-nCoV IgM/IgG Test Kit, Wondfu SARS CoV-2 Antibody Test and Aeskulisa SARS-CoV-2 NP IgG while IgG assay on Lifotronic FA160 (Shenzhen SARS-CoV-2 Assay Kit) showed the lowest specificity at 58%. Maximum agreement was observed between Aeskulisa SARS-CoV-2 NP IgG and Alinity SARS-CoV-2 IgG at 94%. Serological tests are practical alternatives but their reliability requires critical validation. The pandemic pointed a need for investment in health research on both national and international levels.It is known that severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) can be detected in the stools of patients with the coronavirus disease 2019 (COVID-19) and that the virus can be transmitted by oral-fecal route. However, there are few reports on the viral load in stools. This pilot study aimed to evaluate the clinical characteristics and viral load of SARS-CoV-2 in the stools of 13 patients with confirmed COVID-19 using as control the pepper mild mottle virus, which was proposed as a potential indicator of human fecal contamination of environmental water. SARS-CoV-2 RNA was detected in stool samples from four patients (31%), among whom three presented diarrhea symptoms. One patient experiencing long-term diarrhea (22 days) had high levels of viral RNA in the stools (8.28 log10 copies/g). However, we could not isolate the SARS-CoV-2 in the stool of any patients, using VeroE6/TMPRESS2 cells for four weeks. Our results suggest that SARS-CoV-2 RNA may be detected in the stools of patients with the diarrhea symptoms. Further studies evaluating the relationship between SARS-CoV-2 viral load in stools and diarrhea symptoms in larger patient cohorts and upon adjusting for other causative factors and virus infectivity are still needed.Neisseria gonorrhoeae (N. gonorrhoeae) is one of the causing factors of sexually transmitted diseases (STDs). This bacterium infects the epithelial cells of the cervix of women and urethra of men. However, the symptoms in the lower genitalia are found only in a small percentage of people. The aim of this study was comparing the frequency of N. gonorrhoeae genital infection among two groups of pregnant women (spontaneous abortion and normal pregnancy).This cross-sectional study was performed in the west of Iran. click here This study was performed on 417 women who consisted of 109 spontaneous abortions, 109 normal deliveries, 100 fertilities and 99 infertile women. Specific primers were used and DNA was extracted by endocervical swabs; then a Polymerase chain reaction (PCR) test was done for detection of N. gonorrhoeae. Data analysis was carried out using Chi-Square Test and t-Test. In all of the above-said steps, a level of 5% was considered significant.The average age in women with normal delivery (27.8±4.87) in women with spontaneous abortion (29.6±5.9) in fertile women (32.1±5.1) and in infertile women were (29.1±6.3). The total frequency of N. gonorrhea infection was 0 (0%). Prevalence of N. gonorrhoeae infection was zero; also it was not associated with spontaneous abortion and infertility.Xpert Xpress Flu/RSV is a fast and automated real-time nucleic acid amplification tool for detecting influenza virus and respiratory syncytial virus (RSV). The aim of this study was to verify the accuracy of Xpert Xpress Flu/RSV in detecting influenza virus and RSV. PubMed, EMBASE, Cochrane Library, and Web of Science were searched up to October 2020. The quality of original research was assessed using the Quality Assessment of Diagnostic Accuracy Studies-2 guidelines. Meta-DiSc 1.4 software was used to analyze the sensitivity, specificity, positive likelihood ratio, negative likelihood ratio, diagnostic odds ratio, and Summary receiver operating characteristic curve. Deek's funnel plot asymmetry test was used to evaluate the publication bias by Stata 12.0. Ten studies with 25 fourfold tables were included in this analysis. The sensitivity of Xpert Xpress Flu/RSV in detecting influenza A, influenza B, and RSV was 0.97, 0.98, 0.96, respectively, and the specificity was 0.97, 1.00, 1.00, respectively. Compared with other common clinical real-time reverse transcriptase PCR (RT-PCR), Xpert Xpress Flu/RSV is a valuable tool for diagnosing influenza virus and RSV with high sensitivity and specificity.