Salmonella Septicemia
Salmonella septicemia is a serious bloodstream infection caused by the dissemination of Salmonella bacteria beyond the gastrointestinal tract. Unlike localized salmonellosis, which primarily presents as…
Rubella Vaccination
Rubella, also known as German measles, is a contagious viral infection caused by the rubella virus. While mild or asymptomatic in most individuals, rubella poses…
RSV Vaccination at 32 to 36 Weeks Gestation to Prevent RSV
Respiratory syncytial virus (RSV) is a major cause of lower respiratory tract infections in infants, particularly during the first months of life. It leads to…
Rotavirus Vaccination
Rotavirus is a leading cause of severe gastroenteritis in infants and young children worldwide. Characterized by profuse diarrhea, vomiting, fever, and dehydration, rotavirus infection results…
ROS1-Positive Non-Small Cell Lung Cancer
ROS1-positive non-small cell lung cancer (NSCLC) is a distinct molecular subtype of lung cancer characterized by gene rearrangements involving the ROS1 proto-oncogene. These rearrangements lead…
Rocky Mountain Spotted Fever
Rocky Mountain spotted fever (RMSF) is a severe and potentially life-threatening tick-borne illness caused by the bacterium Rickettsia rickettsii. First identified in the Rocky Mountains,…
Risk of Measles Exposure
Measles is a highly contagious viral illness caused by the Measles morbillivirus, known for its airborne transmission and rapid outbreak potential. Despite being vaccine-preventable, measles…
Right-Sided Staphylococcus Aureus Endocarditis
Right-sided Staphylococcus aureus endocarditis is a serious and increasingly prevalent form of infective endocarditis, primarily affecting the tricuspid valve. It is particularly associated with intravenous…
Rickettsialpox
Rickettsialpox is an acute, self-limiting zoonotic disease caused by Rickettsia akari, a member of the spotted fever group (SFG) of Rickettsiae. It is transmitted to…
Rickettsial Infection
Rickettsial infection refers to a group of zoonotic diseases caused by obligate intracellular Gram-negative bacteria of the genus Rickettsia and related organisms. These pathogens are…