RA (Rheumatoid Arthritis) Rabies Raccoon Roundworm Infection [Baylisascaris Infection] Rat-Bite Fever (RBF) [Streptobacillus moniliformis Infection] RBF (Rat-Bite Fever) Respiratory Syncytial Virus Infection (RSV) Rickettsial Diseases Rift Valley Fever (RVF) Ringworm [Dermatophyte Infection] RMSF (Rocky Mountain Spotted Fever) Rotavirus Infection Rubeola [Measles] Runny Nose