उनाव गोबां आफ्रीका आरो एशियानि हादोरफोराव सीर'ल'जिकेल फरायसंनायफ्रा फोरमायो दि भाइरासआ बे ओनसोलनि सुबुंफोरनि गेजेराव गोबाङै गोसारना दंखायोमोन।
Subsequent serological studies in several African and Asian countries indicated the virus had been widespread within human populations in these regions.