| Answer | Crossword Clue |
|---|---|
| contagia | CONTAGIUM, a causative agent of infectious diseases |
| contagium | a causative agent of infectious diseases |
| contagia | the causative agent of a contagious or infectious disease, as a virus |
| yaws | a contagious tropical disease caused by a spirochete (Treponema pertenue) closely resembling the causative agent of syphilis and marked by infectious ulcerative skin lesions with later bone involvement called also frambesia |
