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Some 45 million doses of a swine flu vaccine are expected to be available in mid-October, but the government is already asking employers to develop health and continuity plans for a resurgence of this flu.

WASHINGTON
-- Government officials are calling on U.S. businesses to help manage swine flu this fall by getting vaccines to vulnerable workers and encouraging employees with symptoms to stay home.

Commerce Secretary Gary Locke said Wednesday that employers should develop plans for managing both seasonal and swine flu. Businesses should encourage employees who are at-risk for swine flu to get the vaccine as soon as it becomes available. First in line are pregnant women, health care workers and younger adults with conditions such as asthma.

The government is trying to prepare for the possibility of a widespread outbreak this fall, which could hurt businesses along with the broader economy by keeping workers home. Unlike regular seasonal flu, the H1N1 virus which causes swine flu has not retreated during the hot and humid summer months, and so far has infected more than 1 million Americans.

Locke briefed reporters on recommendations for U.S. businesses at a press conference alongside Homeland Security chief Janet Napolitano and Health and Human Services Secretary Kathleen Sebelius.

The three cabinet secretaries said each company must develop its own unique plan. The officials declined to give more detailed instructions, explaining the scope of a potential outbreak is still unclear.

About 45 million doses of swine flu vaccine from GlaxoSmithKline, Novartis and several other companies are expected to be available by mid-October. Federal officials plan to begin shipping vaccines out to the states when they become available.

The World Health Organization has estimated that up to 2 billion people could be sickened during the swine flu pandemic, which already is known to be responsible for more than 1,400 deaths.