Infectious diseases

Abstract This chapter discusses infectious diseases, and includes bacterial infection, antibiotics, gram-positive bacteria, gram-negative bacteria, tuberculosis (TB), influenza, human immunodeficiency virus (HIV) diagnosis, complications, and HIV antiretroviral therapy (ART), herpes, immunization, fungi, healthcare-associated (nosocomial) infection, sexually transmitted infection, fever in the returning traveller, enteric fever, malaria, mosquito-borne disease, vector-borne disease, zoonoses, viral haemorrhagic fever (VHF), gastroenteritis, gastrointestinal parasites, schistosomiasis and liver disease, neurological disease, eye disease, skin disease, and pyrexia of unknown origin.