meningoencephalitis, infective, outbreak, contagious disease, reinfection, infected, salmonellosis, enzootic, giardiasis, norovirus, rift valley fever, zoonotic, predy, arbovirus, shigellosis, toxoplasma, communicability, lymphogranuloma venereum, shigella, infection, parvo, mycoplasma, herpesvirus, transmissible, lifespan, gestation, cerebrospinal meningitis, symptomless, anaplasmosis, oocyst, serotype, stomach flu, vesicular stomatitis, herpesviruses, roseola, pertussis, neisseria, swannery, ragweed pollen, psittacosis, noncontagious, brucella, undulant fever, quadrivalent, pseudomonas, meningococcus, enterovirus, enteric bacteria, atypical pneumonia, bacteraemia, quarantine, illness, asymptomatic, incubation, swine influenza, rocky mountain spotted fever, contagious, vaccinated, ebola fever, amebiasis, viral pneumonia, pasteurella, cryptosporidiosis, bovis, parainfluenza virus, coxsackie virus, viremia, mosquito bite, zoonotic disease, west nile virus, leptospirosis, enterococcus, enteritis, virus, amebic, infective agent, influenza, listeriosis, tasseling, prodrome, unvaccinated, vibrio, superinfection, respiratory illness, l. monocytogenes, whooping cough, incubate, septicemic, marburg, alphavirus, arboviruses, chemoprophylaxis, lasts, inoculum, mumps, trichinella, enteric fever, coccidia, pyelonephritis, enterotoxin, yersinia, salmonella enteritidis

amount of time, period, period of time, time period