General epidemiology, disinfetion, disinsection,deratisation, sterilization, vaccination, epidemiology of artropod-borne infections, gastrointestinal infections, viral hepatitis, nosocomial infections, HIV/AIDS. Epidemiological news.
General epidemiology, disinfetion, disinsection,deratisation, sterilization, vaccination, epidemiology of artropod-borne infections, gastrointestinal infections, viral hepatitis, nosocomial infections, HIV/AIDS.