GENEVA, May 1 (Xinhua) -- The total number of lab confirmed human infections of influenza A/H1N1 has reached 365 as of 19:00 GMT Friday, the World Health Organization (WHO) said in a latest update.

A safety and security manager in a Category 4 laboratory handles an uninfected blood sample used as a control against Influenza A samples at the National Institute of Medical Research in London May 1, 2009.

The U.S. government has reported 141 laboratory confirmed human cases, including one death. Mexico has reported 156 confirmed human cases of infection, including nine deaths, said the UN agency.

Mexicans wear face masks in the belief that the masks will protect them from the influenza A (H1N1) virus, formerly referred to as swine flu, in Mexico City in this combination photo. Mexico began shutting down all non-essential work and services on April 30, 2009 to slow the spread of a new flu strain as officials urged increased worldwide precautions against an imminent pandemic.

In addition, 11 countries and regions have reported laboratory confirmed cases with no deaths, including Austria (1), Canada (34), Hong Kong, China (1), Denmark (1), Germany (3), Israel (2), Netherlands (1), New Zealand (3), Spain (13), Switzerland (1) and Britain (8).

    The WHO said that the situation continued to evolve and it would renew its tally on regular basis.