At least 800,000 migrant workers in the city will be offered free vaccines for the first time in the city. The inoculation is scheduled to be completed by January 15, just before the workers take trips back home for Spring Festival (Chinese Lunar New Year), which falls on January 22 and runs until February 5.

Wednesday at a construction site in Chaoyang District, hundreds of peasant laborers were jostling each other, waiting for their turn for the free encephalitis vaccination.

The measles vaccine, set for the second phase, is to be given two weeks later, and will also be free of charge.

It is the first time for the Beijing health authorities to provide free vaccination to migrant workers who usually have poor access to health care.

All the migrant workers in Beijing, engaged mainly in the construction, catering, garment and shoe industries, are expected to receive encephalitis and measles vaccines before January 15.

The massive inoculation will cost 3 million yuan (US$350,000). The municipal government will pay for it, apparently in an effort to prevent epidemics from breaking out and spreading and not to repeat the explosive outbreak of SARS (severe acute respiratory syndrome) earlier this year in the city.

Li Guoying, an official with the Municipal Disease Control and Prevention Centre, said most of the 800,000 peasant laborers have never received any vaccination before, due to a poor health care in rural areas.

"Because migrant workers usually live in crowded places with poor hygiene conditions, encephalitis and measles outbreaks are very common and the virus may spread quickly among them, especially in winter," Liu said.

Health experts said measles and encephalitis are two of the most contagious of all human viruses.

Measles causes a rash, cough, and fever, and encephalitis often begins with a flu-like illness with headaches and vomiting.

Both of the diseases can lead to death if treatment is not given in time.

"Many migrant workers usually do not see a doctor when they have a fever or any other ailments. So the group of migrant workers is at high risk in contagious disease outbreaks," said Liu.

(China Daily December 25, 2003)