What to do if you are exposed to TB? Read more

TB Vaccines (BCG)

Bacille Calmette-Guérin (BCG) is Read more

Saliva and Nasopharyngeal: Is saliva nucleic acid amplification testing (NAAT) comparable to nasopharyngeal NAAT, the current noninvasive criterion standard test for diagnosis of coronavirus disease 2019? Read more

COVID‑19 Antigen Fluorescence Immunoassay, Tests detecting SARS‑CoV‑2‑specific antigen have recently been developed, and many of them are now commercially available. However, the real‑world performance of these assays is uncertain; therefore, their validation is important. In this study, we have evaluated the performance of STANDARD F COVID‑19 antigen fluorescence immunoassay (FIA) kit. Methods: Nasopharyngeal samples collected from patients were subjected to the test as per manufacturer’s instructions. The performance of the kit was compared with the gold standard real‑time polymerase chain reaction. Results: A total of 354 patients were tested with STANDARD F COVID‑19 antigen FIA test kit. The overall sensitivity, specificity, positive predictive value, and negative predictive value of this test were found to be 38%, 99%, 96.2%, and 72%, respectively, with a diagnostic accuracy of 75.7%. Conclusion: STANDARD F COVID‑19 antigen FIA showed high specificity and positive predictive value but low sensitivity and negative predictive value Read more