President John Magufuli said during an event in the north west of Tanzania that the test kits were imported from overseas, but did not say where. He said that in order to evaluate the quality of the kits, Tanzanian security forces randomly obtained non-human samples, including from a pawpaw, a goat and a sheep. The random samples were assigned human names and ages, and sent to a laboratory to test for coronavirus. Lab technicians were deliberately not informed about the origins of the samples. The pawpaw and goat samples tested positive for Covid-19, said Mr Magufuli. The president said the faulty kits meant some people were testing positive for coronavirus without actually being infected, reported Reuters