US warns health officials to be alert for deadly new virus

Most of the infections have occurred in the Middle East, but a new analysis of three confirmed infections in Britain suggests the virus can pass from person to person rather than from animal to humans, the CDC said in its Weekly Morbidity and Mortality Report on Thursday.

The virus is a coronavirus, part of the same family of viruses as the common cold and the deadly outbreak of Severe Acute Respiratory Syndrome (SARS) that first emerged in Asia in 2003. The new virus is not the same as SARS, but like the SARS virus, it is similar to those found in bats.

So far, no cases have been reported in the United States.

According to the CDC's analysis, the infections in Britain started with a 60-year-old man who had recently traveled to Pakistan and Saudi Arabia and developed a respiratory illness on Jan. 24, 2013. Samples from the man showed he was infected with both the new virus and with H1N1, or swine flu.

This man subsequently passed the infection to two members of his household: a male with an underlying illness who became ill on Feb. 6 and subsequently died; and a healthy adult female in his household who developed a respiratory illness on Feb. 5, but who did not need to be hospitalized and has recovered.

The CDC said people who develop a severe acute lower respiratory illness within 10 days of returning from the Arabian Peninsula or neighboring countries should continue to be evaluated according to current guidelines.

The health agency said doctors should be watchful of patients who develop an unexplained respiratory infection within 10 days of traveling from the Arabian Peninsula or neighboring countries. The CDC has set up a special website with updates on the infections at http://www.cdc.gov/coronavirus/ncv/.

Symptoms of infection with this new virus include severe acute respiratory illness with fever, cough and shortness of breath. Neither the CDC nor the World Health Organization has issued travel restrictions related to the virus.

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