Hong Kong Center for Health Protection (CHP) Controller Thomas Tsang said on Saturday that no new case of influenza A/H1N1 was detected thus far.

Speaking at a press briefing on Saturday evening, Tsang said that there has been no additional case of the new strain found in Hong Kong hitherto.

The city reported its first case on May 1, which involved a Mexican man who arrived via Shanghai on April 30. He is now being quarantined in the hospital and his condition is stable, according to Tsang.

The two men who traveled together with the patient and a women who sat one row behind him on the same flight and developed fever were tested negative for the flu.

Local health departments have successfully got contact with all36 passengers who sat in the three rows before or behind the Mexican patient, as well as two taxi drivers who had carried the man before he was admitted to the hospital.

The departments will arrange body check-ups and some other follow-up procedures to the above individuals.

About 100 staff and some 240 lodgers of Metropark Hotel in Wan Chai, which the Mexican patient checked in on arrival, had been interviewed by public health personnel of the CHP. They were given medication and confined at hospitals, the hotel and Lady Maclehose Holiday Village for quarantine.

Tsang also told that seven people were tested for the new virus on Saturday in which two of them showed negative results while the rest of them were still in the air.

Also attending the briefing, Director of Food and Environmental Hygiene W H Cheuk said the government has requested the public transport operators to enhance their hygienic work.

Main streets in the city will be cleaned from once every week to every other day, said Cheuk, adding that private property owners will receive cleaning directions from the government.

Hong Kong Secretary for Education Michael Suen said after the press meeting that there was no need to close schools at this stage unless the influenza A/H1N1 virus spreads.