Aangegeven patiënten met infectieziekten in 1986

- The numbers of cases of infectious diseases reported in 1986 are reviewed. The rise of the incidence of malaria and pertussis observed in 1985 continued, as did the fall of the incidence of hepatitis B, gonorrhoea and primary and secondary syphilis. The decrease of the last-mentioned three infectious diseases is connected with the progressively increasing problem of AIDS. The incidence of typhoid fever again increased substantially. Leptospirosis caused by Leptospira interrogans, serogroup Sejroe, in which bovines play a central part, appears to be an increasingly serious problem. For the first time, a case of yellow fever was diagnosed in the Netherlands.