Airport screenings for Nipah virus, which have been stepped up across Asia this week after two cases were identified in India, ​are more about reassurance than science, several leading experts said on Friday.

Following the outbreak of the deadly Nipah virus, airports in Asia are screening travelers from the “affected areas.”

Countries across Asia are on high alert after cases of the deadly Nipah virus were detected in India. Though Indian officials said they have contained the outbreak, screenings at airports in Asia increased at major airports, with health declarations, temperature checks and visual monitoring of passengers.

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As health authorities step up surveillance amid fresh Nipah virus concerns, here’s a comprehensive look at the outbreak, symptoms, transmission risks, fatality rate, and the World Health Organisation’s latest assessment and guidelines.

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Experts have warned that millions of people travelling to and from Asia for Chinese New Year could potentially trigger a spike in Nipah virus cases.