गुसु आरो गोरान बोथोरा मोदोमनि बायजोआव भाइरासखौ गुबुन थासारिफोरनिख्रुइ गोबावसिन थावरिहोनो हायो , गोजां - बोथोराव दुंब्रुद ओनसोलफोराव मोनसे जाउन , बोथोरारि महामारिफोर हिसाबै नुजायो ।
Cold and dry weather enables the virus to survive longer outside the body than in other conditions and as a consequence seasonal epidemics in temperate areas appear in winter .