The outbreak comes ahead of the Lunar New Year holidays in late January, when many of China’s 1.4 billion people will be traveling to their home towns or abroad. The World Health Organization is taking steps to ensure the disease does not spread further.
Thai health authorities said on Jan. 15 they were stepping up monitoring of passengers arriving at airports with infrared thermal scanners ahead of the holiday, when 800,000 Chinese tourists are expected to visit the country.
WHO has said there may have been limited human-to-human transmission of the new coronavirus in China within families.
And authorities in Wuhan confirmed on Wednesday that a married couple diagnosed with pneumonia may be infected by the new virus.
The Wuhan Municipal Health Commission did not say in the statement whether the couple represented an instance of human-to-human transmission. But it said the husband, who worked at a seafood market suspected of being at the epicenter of the outbreak, was the first to fall ill, and that his wife did not have any exposure to the market.
Some of the other people diagnosed also denied visiting the market, the commission said.
The State Department’s notice referred to an alert by the U.S. Centers for Disease Control and Prevention urging citizens in China traveling to Wuhan to avoid contact with animals, animal markets or animal products, among other precautions.
It also asked citizens those who had visited Wuhan and feel sick to seek medical care.