Fever(3) Returning traveler(2) Vaccine(2) malaria(2) occupational health(2) Shigella(2) COVID-19(2) Tropical infections(2) health care personnel(2) international travel(2) Child(2) diagnostics(2) Vaccines(2) Human(1) Pasteurella(1) Travel medicine(1) hepatitis B(1) anti-spike monoclonal antibodies(1) community-acquired pneumonia(1) Plasmodium(1) Bordetella pertussis(1) molnupiravir(1) Salmonella(1) interferon-α(1) Yersinia(1) mRNA vaccine(1) Enterotoxigenic Escherichia coli(1) mammal(1) Epidemiology(1) resistance(1)