HIV: Structure, Laboratory Diagnosis, and Natural Resistance
Complete guide to HIV: structure (gp120, gp41, p24, reverse transcriptase), laboratory diagnosis (ELISA, Western blot, PCR, CD4 count), and why some people are naturally resistant...
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Sexually transmitted infections (STIs)
This is the clusters of infections that are transmitted sexually.
Trichomonas vaginalis: Clinical Features, Lab Diagnosis, and Differentiation from Bacterial Vaginosis
Trichomonas vaginalis vs Gardnerella vaginalis: how to tell trichomoniasis apart from bacterial vaginosis using pH, wet mount, whiff test, and clue cells. Complete lab diagnosis: m...
Lab Diagnosis of Syphilis: The Testing Algorithm and How to Interpret Results
How syphilis is diagnosed when the organism cannot be cultured: the screen-then-confirm algorithm, treponemal vs non-treponemal tests, and how to read each combination of VDRL/RPR...
Chlamydia trachomatis: Serovars, Life Cycle, Diseases, Diagnosis, Treatment
How Chlamydia trachomatis uses its elementary-body and reticulate-body life cycle to infect cells, which serovars cause trachoma, genital infection, and LGV, and how it is diagnose...