Some of those infected may be asymptomatic, without any clinical symptoms but with test results that confirm infection, so researchers have issued recommendations that people who have had close contact with confirmed infected individuals should be closely monitored and examined to rule out the risk of infection.
Wengine kati ya watu walioambukizwa huenda wasionyeshe dalili zozote, bila dalili zozote za kimatibabu lakini matokeo yao ya kupimwa yanathibitisha kwamba wameambukizwa, kwa hivyo watafiti wametoa ushauri kwamba wale waliogusana na watu ambao wamethibitishwa kuambukizwa wanapaswa kufuatiliwa na kuchunguzwa ili kuondoa hofu ya maambukizi.