bacillus
bacterium
biological
biology
cells
chlamydia
chlamydial
clamidiosis
condom
contagious
dermatovenerology
disease
genital
gonococcus
gonorrhea
health
herpes
human
ill
illness
infections
infectious
infective
male
medical
medicine
micro
microbe
microbiology
microscope
microscopic
organism
pale
pallidum
pathology
research
science
scientific
sick
sickness
syphilis
treponema
trichomonad
trichomonas
veneral
venereology