Latest from Stephen Chen
Survey in Turkey suggests people are having sex less often – consistent with findings elsewhere – and are concerned about spreading Covid-19, researchers say.
Survey in Turkey suggests people are having sex less often – consistent with findings elsewhere – and are concerned about spreading Covid-19, researchers say.
Doctors angry at US President Trump’s claim that American physicians and hospitals are inflating data, including coronavirus-related deaths.
Doctors angry at US President Trump’s claim that American physicians and hospitals are inflating data, including coronavirus-related deaths.
Modifications to the structure of human cells caused by a flu bug can make it easier for the coronavirus to invade them, Chinese researchers say.
Modifications to the structure of human cells caused by a flu bug can make it easier for the coronavirus to invade them, Chinese researchers say.
Researchers in the Netherlands say reported cases dropped when pollen count was high.
Researchers in the Netherlands say reported cases dropped when pollen count was high.
Cooperation has even benefited research with potential military applications, at a time of toxic political relations between the countries.
Cooperation has even benefited research with potential military applications, at a time of toxic political relations between the countries.
Some recovered patients breathe out thousands of viral particles, Chinese-led small-scale study finds.
Some recovered patients breathe out thousands of viral particles, Chinese-led small-scale study finds.
Researchers say they’ve identified a high-risk molecule commonly found in Covid-19 patients that may assist the virus rather than neutralising it.
Researchers say they’ve identified a high-risk molecule commonly found in Covid-19 patients that may assist the virus rather than neutralising it.
Standard design works for men but results in greater leakage when used by women and the elderly, researchers say.
Standard design works for men but results in greater leakage when used by women and the elderly, researchers say.
The 30-year-old man from Texas had trouble with speech and movement but did not show other symptoms such as fever, coughing or chest pains.
The 30-year-old man from Texas had trouble with speech and movement but did not show other symptoms such as fever, coughing or chest pains.
Nearly half the population of the Caribbean island nation believes debunked conspiracy theory that the virus was made in a Wuhan lab, survey finds.
Nearly half the population of the Caribbean island nation believes debunked conspiracy theory that the virus was made in a Wuhan lab, survey finds.
US scientists say the paper-folding technique can be used to make a simple mask that potentially has a better seal than surgical or N95 masks.
US scientists say the paper-folding technique can be used to make a simple mask that potentially has a better seal than surgical or N95 masks.
Modelling by scientists finds the basic reproduction number around 8 for both the earliest outbreak in China and in recent months in the US.
Modelling by scientists finds the basic reproduction number around 8 for both the earliest outbreak in China and in recent months in the US.
Findings suggest that the antibodies formed after the first infection did not offer strong protection against the second, team says.
Findings suggest that the antibodies formed after the first infection did not offer strong protection against the second, team says.
Chinese researchers found that exposure to human breast milk helps kill the virus that causes Covid-19.
Chinese researchers found that exposure to human breast milk helps kill the virus that causes Covid-19.
Chinese palaeoanthropologists dispute long-held notion that Toba eruption 74,000 years ago wiped out populations.
Chinese palaeoanthropologists dispute long-held notion that Toba eruption 74,000 years ago wiped out populations.
More than half of cats and dogs living with infected owners test positive for antibodies in French study.
More than half of cats and dogs living with infected owners test positive for antibodies in French study.
It may be good news for individuals but not the pandemic, with low levels of virus able to spread without being detected by the immune system.
It may be good news for individuals but not the pandemic, with low levels of virus able to spread without being detected by the immune system.
Japanese nuclear physicists say that limiting the spread of the virus could be similar to controlling a thermonuclear reaction.
Japanese nuclear physicists say that limiting the spread of the virus could be similar to controlling a thermonuclear reaction.
Researchers used 3D images to determine how much younger or older people look compared to their actual age.
Researchers used 3D images to determine how much younger or older people look compared to their actual age.
Hungarian team finds virus particle withstands being probed by a nano needle 100 times, possibly making it the most physically elastic virus known
Hungarian team finds virus particle withstands being probed by a nano needle 100 times, possibly making it the most physically elastic virus known
Researchers in Brazil found a concentration of the virus in just a small part of one-year-old’s brain, indicating it may have limited ability to reproduce there.
Researchers in Brazil found a concentration of the virus in just a small part of one-year-old’s brain, indicating it may have limited ability to reproduce there.
Findings challenge conclusions from previous research that swine could not contract the pathogen that causes Covid-19.
Findings challenge conclusions from previous research that swine could not contract the pathogen that causes Covid-19.
Physicist Pan Jianwei says his team achieved quantum supremacy but ‘further verification’ is necessary.
Physicist Pan Jianwei says his team achieved quantum supremacy but ‘further verification’ is necessary.
Decline of new cases after first wave was caused by lockdown and social distancing but also the end of flu season, find European researchers.
Decline of new cases after first wave was caused by lockdown and social distancing but also the end of flu season, find European researchers.
Absence of cells vital for lasting ability to fight the virus casts doubt on patients’ ability to produce the immune response needed for a vaccine to work.
Absence of cells vital for lasting ability to fight the virus casts doubt on patients’ ability to produce the immune response needed for a vaccine to work.
A new study from Chinese researchers found that Sars-CoV-2 remains infectious on salmon for eight days at 4 degrees Celsius.
A new study from Chinese researchers found that Sars-CoV-2 remains infectious on salmon for eight days at 4 degrees Celsius.
Analysis of records from Washington hospital finds the median time to test negative is 25 days, while other research has suggested it’s 20 days for adults.
Analysis of records from Washington hospital finds the median time to test negative is 25 days, while other research has suggested it’s 20 days for adults.
Researchers suggest reduced working hours and government support may have eased stress and financial pressure, contributing to the decrease.
Researchers suggest reduced working hours and government support may have eased stress and financial pressure, contributing to the decrease.
Chinese and US researchers have come up with an estimate of 4.54 per cent based on data from the initial outbreak in Wuhan. It compares to estimates ranging from 1.61 to 1.98 per cent for the influenza virus over a century ago.
Chinese and US researchers have come up with an estimate of 4.54 per cent based on data from the initial outbreak in Wuhan. It compares to estimates ranging from 1.61 to 1.98 per cent for the influenza virus over a century ago.
Focus groups reveal scrupulous cleaning rituals when bringing goods into the home, with some new habits raising the alarm for researchers.
Focus groups reveal scrupulous cleaning rituals when bringing goods into the home, with some new habits raising the alarm for researchers.