Six intestinal nematodes commonly infect humans: Enterobius vermicularis (pinworm), Trichuris trichiura (whipworm), Ascaris lumbricoides (large roundworm), Necator americanus and Ancylostoma duodenale (hookworms), and Strongyloides stercoralis.
So worms...
estimated 807 million–1.2 billion people in the world are infected with Ascaris lumbricoides (sometimes called just Ascaris or ascariasis). Ascaris, hookworm
Whipworm is effectively treated with albendazole, mebendazole or ivermectin
Wow, and none of those listed where a respiratory virus.....