The schools have been fully or partially closed for over 83 weeks, affecting more than 10 million pupils, according to UN figures.
Mr Museveni and other members of the team who tested negative will be retested.
The Burundian girls were rescued while in transit to other countries for sex trade.
The protest was taking place at City Square, Kampala.
A tentative allocation of more than 3.5 million doses are expected by the end of this month or early next month.
Robert ‘Bobi Wine’ Kyagulanyi has been kept under house arrest in his home since returning from voting at the country’s general election last week Thursday.
“No way anybody can come and play around with our country to say ‘it is good, it is bad’ we will stop this one, we cannot accept that.”
Although the internet is now on, social media is still blocked.
It is not immediately clear how the opposition would challenge the results.
The NUP leader said he would speak in detail about these irregularities as soon as the internet was restored.
