The work of WHO on virus and rickettsial diseases.
D035843:Biomedical Research; D006801:Humans; D011634:Public Health; D012282:Rickettsia Infections / Q000517:prevention & control*; D014777:Virus Diseases / Q000517:prevention & control*; D014937:Work
PUBLIC HEALTH; RICKETTSIAL DISEASES/prevention and control; VIRUS DISEASES/prevention and control