A foreign affairs official on Saturday advised Filipinos living and working in Hong Kong to "take precautionary measures" to avoid being infected by the deadly swine flu, which has spread to more than 10 countries.

Consul General Claro Cristobal said since Hong Kong confirmed a case of influenza A (H1N1) virus, there have been no reports of Filipino being infected by the virus, which has killed dozens of people in Mexico. The are at least 150,000 Filipinos in Hong Kong.

Cristobal said Filipino nationals in Hong Kong who would develop swine flu symptoms should immediately coordinate with the consulate's Center for Health Protection through its hotline, 2125-1111.

He said he had designated Vice Consul Val Roque as focal person for the consulte on the swine flu emergency. He also urged Filipinos in Hong Kong to constantly inquire for updates with the consulate at phone number 915-54023.

Hong Kong's Chief Executive Donald Tsang on Friday said they have confirmed a swine flu case with the arrival of an infected Mexican man via Shanghai.

"We have our first confirmed swine flu case in Hong Kong. He is Mexican," Tsang told reporters.

The 25-year-old Mexican arrived in Hong Kong on Thursday from Mexico via Shanghai on China Eastern Airlines flight 505.

He was admitted to hospital on Thursday night suffering from a fever and tested positive on Friday for swine flu. He was in stable condition, Tsang said.

Health Secretary York Chow said guests and staff at the Metropark Hotel in Wanchai district where the Mexican had been staying will be quarantined for seven days.

"We have also exercised the authority... so that we will first isolate the hotel and also... ensure the relevant people are quarantined for seven days," Chow told reporters.

"We will also prescribe Tamiflu for them, which is proven to be an effective prophylactic for this disease."

He said around 200 people would be affected by the quarantine order, issued under the control and prevention of disease ordinance.