Kampala says country is Ebola free, but Swiss authorities believe a woman diagnosed in Nigeria was infected in Uganda. Ugandan citizens returning to the country with a history of travel to Democratic Republic of Congo will be quarantined for 21 days, Health. KOLKATA: Six flyers who have returned from Ebola-hit nations over the past week have been sent to home quarantine for 21 days under advice of Kolkata airport authorities, with state.