Use of the microbiology laboratory; antimicrobial chemotherapy; pyrexia of determined origin; septicemia; opportunistic infections; obstetric, perinatal and neonatal infections; infections in children; anaerobic infections; infections of the central nervous system; ENT and eye infections; infections of the lower respiratory tract; mycobacterial and actinomycete infections; infections of the gastro-intestinal tract; dysentry; hepatic infections; skin infections and infestations; bone and joint infections; infections of the heart; infections of the urinary tract; sexually transmitted diseases; AIDS and other diseases caused by retroviruses; zoonoses; arthropod-borne infections and viral haemorrhagic fevers; worms; hospital infection; disinfection and sterilization.