| a common-source outbreak of crimean-congo haemorrhagic fever on a dairy farm. | an outbreak of crimean-congo haemorrhagic fever (cchf) on a dairy farm in the orange free state in 1984 is described. forty-six cows were purchased from the western cape province in january 1984; 2 died from the tick-borne disease anaplasmosis in march and a labourer who helped butcher the carcasses became ill a few days later. another cow died at the end of april and within 9 days 4 people who had come into contact with its blood became ill. antibodies to cchf virus were found in the sera of th ... | 1985 | 3933131 |