The total number of cases in mainland China reached 44,653 and the death toll hit 1,113.
Kenneth Mak, director of medical services at Singapore's health ministry, told a news conference it was hard to be confident in projections that the epidemic will peak in China this month but, in any case, peaks in other countries will lag China by one or two months.
The Chinese government's senior medical adviser has said the disease is hitting a peak in China and may be over by April.
About 60,000 people have now been confirmed to have the virus, the vast majority in China. The first case was a salesperson who was diagnosed on January 31.
Meanwhile in Malaysia, the World Health Organization (WHO) director for the Western Pacific warned of coronavirus "clusters with no apparent link to China".
"Having a name matters so as to prevent the use of other names that can be inaccurate or stigmatizing".More news: United Nations underlines need for dialogue to resolve Israel-Palestine conflict
"Not only for the sake of China, but also the world, we have adopted rigorous prevention and control measures. effectively curbing the spread of the epidemic", Zhang said.
At the end of a two-day meeting aimed at speeding the development of new tests, drugs and vaccines for the new virus, World Health Organization said scientists had agreed upon a set of global research priorities but warned it could still take considerable time before any licensed products might be available.
In a press briefing in Geneva, Switzerland broadcasted live on the official Twitter page of WHO, Tedros said the development of a possible vaccine is underway and might be available in 18 months.
"That is especially true in relation to sharing of samples and sequences. To defeat this outbreak, we need open and equitable sharing, according to the principles of fairness and equity", Tedros told the conference that gathered 400 scientists for a two-day meeting in Geneva to review how the virus is transmitted and possible vaccines against it.
"We want to reassure our patients, their loved ones and the community at large that there is no exposure risk at any UC San Diego Health hospitals or clinics", the health system said in a statement.
"Serological studies conducted in rural population living close to bats' natural habitat in caves revealed a 2.9-percent bat-CoV seroprevalence, demonstrating that humans' exposure to bat-CoVs might be common", the report read.More news: Xiaomi Mi 10 Pro tops DxOMark camera chart
Bats are rare in markets in China, but are hunted and sold directly to restaurants for food, it noted.
The pathogen has been named COVID-19 - CO for corona, VI for virus, D for disease and 19 for the year it emerged.
"We have a very low index of suspicion for testing people so.we do have higher ascertainment", he said, but added that there was a lot about transmission of the virus yet to be understood.
On the other hand, passengers on the ship, which were quarantined after detecting viruses on a ship from Hong Kong, carrying 3,700 people in Japan, continue to be screened.
To date, the virus has infected more than 42,000 people and killed 1,007, with 99% of the cases found in China. One said she jumped out of a hospital window to escape her quarantine, while the other broke out by disabling an electronic lock.More news: Suspected letter bombs explode in the Netherlands