noun Descargar 🔗Compartir Rickettsia Any of a group of gram-negative bacteria, of the genus Rickettsia, carried as parasites by ticks, fleas and lice; they cause typhus and other diseases Examples : "The doctor said the child had a fever and symptoms consistent with rickettsia, possibly carried by a tick bite. " El médico dijo que el niño tenía fiebre y síntomas compatibles con la rickettsia, posiblemente transmitida por la picadura de una garrapata. microorganism disease biology medicine organism insect science Chat con IAJuego de vocabularioPracticar lectura