The General Administration of Quality Supervision, Inspection and Quarantine (AQSIQ) will increase checks on the body temperatures of people traveling to China from Cambodia, according to a notice on the AQSIQ's website.

Travelers entering with fever, cough, headache or general malaise should report to the quarantine control department, said the AQSIQ.

People suspected of being infected will receive careful tests and be sent to medical institutions for further treatment, the administration added.

Local quarantine authorities will provide health services and education to international travelers to help them avoid being infected by the epidemic.

China will also strengthen sanitary measures against bird flu at customs. Vehicles, containers and goods from Cambodia will be put under strict quarantine upon entering China, according to the notice.

The preventive measures will be valid for three months, the AQSIQ said.

The Cambodian case of avian influenza has left four of the five infected patients dead, according to a report from the World Health Organization.