![]() Quoting from the Guangdong Provincial Centre for Disease Control and Prevention, the study said that as of Feb 20, the coronavirus could be detected in upper respiratory samples one or two days before symptoms. In some later cases, medical workers may have been infected within the household rather than in a health care setting, it said. ![]() Though transmission also occurred in hospitals and other closed settings, transmission in these places did not appear to be a major feature of the virus in China, it said.Īs of Feb 20, there were 2,055 confirmed cases among health workers from 476 hospitals across the country, 88 per cent of which were in Hubei province.īut most of the cases among medical workers were identified early in the outbreak in Wuhan when supplies and experience were lower. Among 344 clusters in southern China's Guangdong province and Sichuan in the southwest, 78 to 85 per cent occurred within families. ![]() The team concluded that in China, human-to-human transmission of the virus occurred largely within households. It gave an overview of the trip, assessed the response to the epidemic and identified next steps for China and other countries to take. The report was compiled by a team of more than two dozen specialists from China and overseas who were part of a nine-day WHO trip to Beijing, and Guangdong, Sichuan and Hubei provinces from February 16. Without identifying that animal chain, there was a risk that outbreaks could recur in areas where they had receded, the UN health agency warned. Bats appeared to be the reservoir of the virus, but the intermediate host had not yet been identified. It also said that epidemiologists were convinced that the coronavirus that caused the disease now known as Covid-19 was caused by an organism spread from animals. In a report, also released on Friday, the WHO said it was convinced that China's containment measures were effective as the number of new cases had continued to fall. More cases have also been reported in South Korea, Italy and Iran, prompting the US Centres for Disease Control and Prevention to raise its travel advisory for Italy and Iran, recommending travellers avoid all non-essential trips to those countries due to "limited access to adequate medical care in affected areas". Mainland China has 79,251 infections, with 39,002 patients recovered. So far, the epidemic has killed 2,835 people on the mainland, with 47 more fatalities on Saturday. ![]() The study was co-authored by dozens of medical experts, including Dr Zhong Nanshan, director of China's State Key Laboratory of Respiratory Diseases, and Chinese University of Hong Kong respiratory medicine expert Professor David Hui Shu-cheong. ![]() "Some patients with Covid-19 do not have fever or radiologic abnormalities on initial presentation, which has complicated the diagnosis," the study said, referring to the disease caused by the coronavirus. But 88.7 per cent of them did develop one after admission. They found that more than half the patients did not have a fever when they went into hospital, making diagnosis more difficult. In a joint study published in the New England Journal of Medicine, researchers from mainland China and Hong Kong reviewed the cases of 1,099 coronavirus patients from 552 hospitals in 30 provinces. The alerts came on Friday (Feb 28) as the WHO declared that the risk of global spread of the coronavirus epidemic had become "very high" - though the UN health agency stopped short of calling it a pandemic. HONG KONG - Health experts have highlighted challenges with the Covid-19 coronavirus epidemic, with the World Health Organization (WHO) warning of the risk of outbreaks coming back to life and researchers in mainland China and Hong Kong pointing out a major difficulty with diagnosis. ![]()
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