Respiratory Syncytial Virus B

Rhodococcus equi

Rickettsia (all species)

Rickettsia prowazekii

Rocio Virus

Rubella Virus

Salmonella enterica subspecies enterica

Sandfly Fever Sicilian Virus

SARS Coronavirus

Schistosoma haematobium

Schistosoma mansoni

Semliki Forest Virus