Makerere University is carrying out an independent investigation into how nine people tested positive for Covid-19 at the institution's laboratory but turned out negative at Uganda Virus Research Institute (UVRI).
Prof Barnabas Nawangwe, the Vice Chancellor, yesterday said Makerere University's laboratory team did everything right but wants to establish where the mistake originated.
While giving an update on the pandemic at the weekend, Dr Ruth Jane Aceng, the Health minister, said between June 3 and 4, a batch of 50 samples from within Kampala were analysed in Makerere laboratory and showed positive results.
According to the Health ministry, errors in handling test samples is not uncommon in laboratory management, and that is why multiple tests are done.
"Errors leading to false results can be classified into; errors before analysis, which may arise during sample collection, packaging, shipping, opening, etc; errors during sample analysis, processing, or sample analysis and errors after analysis during reading results, analysing results, interpretation, decoding, or making the right inference/ conclusions or the results," she said.
