The revelations over Cambridge Analytica have prompted investigations on both sides of the Atlantic and led Facebook.
In a second test, the scientists vaccinated different mice with the same immune cells.
President Museveni says that of the 176 samples tested by the health ministry on Tuesday, 11 of them - all of them children - returned positive, lifting the total number of confirmed cases in Uganda to 44. Over 800,000 people are infected globally.
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