COVID-19: asymptomatic, pre-symptomatic, symptomatic …
2020年7月1日 · Additionally, rather than being asymptomatic, it is thought that in many COVID-19 cases, the infected person has a very mild form of the disease. Common symptoms – such as a cough, fever or tiredness – may not develop to any noticeable extent, or symptoms that do exist may be atypical and not look like the most common forms of the disease.
COVID-19: 3 reasons why everyone should wear a face mask
2020年8月12日 · It is estimated that 40% of persons with COVID-19 are asymptomatic but potentially able to transmit the virus to others. In the absence widespread screening tests, we have no way of identifying many people who are silently transmitting the virus in their community.
What are the long-term effects of the COVID-19 pandemic? These …
2021年8月11日 · The COVID-19 pandemic has brought unprecedented digital acceleration, changing the face of the economy and society.
How was smallpox wiped out? | World Economic Forum
2020年4月17日 · Smallpox existed for thousands of years, killed millions, and was fatal in up to 30% of cases. It was eradicated by a collaborative global vaccination programme led by the World Health Organization.
Why are elderly people more at risk from coronavirus? | World …
2020年3月12日 · The fatality rate for people over 80 from COVID-19 is almost 15% according to data from China. Dr. Kate Tulenko explains why older people are so much more vulnerable, as well as the impact coronavirus is having on health systems across the globe and health workers.
COVID-19 response: 6 lessons from China | World Economic Forum
2020年3月12日 · COVID-19 is very contagious and capable of asymptomatic spread, so it’s even more important to mobilize all of society and get everyone involved in the process. The successful implementation of prevention and control measures in Hangzhou, a city of 10 million people, is an example for other parts of the world to follow.
6 expert essays on the future of biotech | World Economic Forum
2020年1月23日 · In fact, many people who are newly diabetic or pre-diabetic can reverse the course of their disease through lifestyle modifications. Alternatively, someone at risk of asthma who is exposed to bad air quality can go on to develop the disease, but then become relatively asymptomatic in an environment with less triggers.
What is COVID-19's R number – and why does it matter?
2020年5月8日 · There are a number of ways to calculate R, as Wired notes.One is by monitoring hospitalisation and death figures to get a sense of how many people have the virus – but the problem with this is that, since the virus’s incubation period is so long, it only gives an accurate picture of a few weeks ago.
COVID-19: How companies are responding | World Economic Forum
2020年3月23日 · “The test targets both IgM and IgG antibodies, which allows for early identification of individuals infected with the virus who have developed an immune response, even if they were asymptomatic or never diagnosed with the disease.” ” —
5 ways the coronavirus is affecting animals around the world
2020年4月7日 · It is thought the tiger, named Nadia, along with six other big cats, were infected by an asymptomatic zoo keeper. The cats have been showing symptoms, including a dry cough, since late March. Paul Calle, the chief vet at the zoo, told Reuters, “This is the first time that any of us know of anywhere in the world that a person infected the ...