Hong Kong International Airport introduced a new health screening questionnaire to screen travelers for the deadly Ebola virus.

Passengers arriving in Hong Kong who have travelled to a handful of countries in West Africa within three weeks or hold passports from one of those countries are encouraged to take the voluntary questionnaire.

Hong Kong’s Chief Port Health Officer for the Department of Health, Dr. Tsui, announced the enhanced measures on Monday. According to Tsui, the new questionnaire will be an addition to existing screening measures already in place in Hong Kong.

“These are supplementary measures to existing border control measures,” said Tsui. “We hope these new, voluntary health surveillance questionnaire measures can supplement and also enhance our capacity to get detection of the Ebola virus.”

Passengers will be asked for information including travel history, health status and contact history with Ebola patients.

According to government information, passengers under the new screening measures will include those from Guinea, Liberia, Nigeria, Sierra Leone and travelers from the Democratic Republic of the Congo. Passengers showing symptoms of the illness or who have had contact with Ebola patients will be referred to the Infectious Disease Centre of Hong Kong for examination.

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