The disease is circulating in livestock, with some human cases reported.
No reports of human fatalities, although at least 25 cattle have already died.
Sanral has insisted that a man arrested in connection with threats against the company was technically not one of its employees.
A Sanral employee has been arrested for acts of terrorism relating to the white powder scare at its offices, says the Hawks.
Researchers say they have found a virus in the bodies of dead zebras that holds the key to treating those infected with anthrax.
Authorities are conducting a search at Sanral’s operations centre in Samrand following reports of a bomb on the premises.
The Sanral operations centre in Centurion has been evacuated and two people quarantined after another anthrax scare, say police.
After a white substance was found in an envelope at the Sanral offices, Justice Project SA says the incident was an act of terrorism and cowardice.
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/ 1 December 2008
Zimbabwe has cut water to Harare, state media reported on Monday, leaving most of the city dry as authorities struggle to contain a cholera outbreak.
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/ 1 December 2008
An anthrax outbreak has killed three people and threatens to wipe out livestock in Zimbabwe, compounding the nation’s struggle against cholera.
Scientists have found ways to tease even more clues out of fingerprints’ telltale marks.
A US biodefence researcher apparently committed suicide just as the Justice Department was about to file charges against him in the anthrax mailings.