The warning is for major markets in the city, including Toi, Gikomba, and Burma, with officials saying Nairobians are staring at a potential disease outbreak.
Njagi claimed that this was part of a wider 'collaboration' between Kenya and Uganda, a partnership that has previously raised concerns among human rights groups.
Mudavadi claims that Kenyans who have received training in online fraud and digital manipulation may attempt to replicate these operations upon their return to Kenya.
According to the notice, public officers who fail to comply with the requirements for declaration of income, assets and liabilities will face disciplinary measures.