So far, many people have ordered a home self-testing kit for COVID-19 at www.covidtests.gov, and in the next few days, they may receive four free kits delivered to their homes by the U.S. Postal Service USPS. Before we receive the test kit, we will have a look at the “accuracy” and “inaccuracy” of the self-test. […]

With its strict lockdown policy, China has achieved remarkable success in controlling novel Coronavirus outbreaks, and now with the global outbreak of COVID-19, can other countries surely replicate China’s success? Each country has its own national conditions, different cultures, and different ways of life. “Copy homework”, probably not that copy. The following is a brief […]

Mandates to wear face masks are disappearing across the country, but Americans who fly, enter airports, or ride buses and trains and transit systems will have to wear them for another month. The Biden administration plans to announce an extension of the mask order, which will remain in place until at least April 18. The […]

In the last 2 weeks, China’s new cases jump. Mainland China is facing its worst Covid-19 outbreak since the height of the pandemic in 2020. Recent outbreaks in 28 provinces have infected more than 15,000 people and stem primarily from the highly transmissible omicron variant. To quickly cut off the source of the virus, some […]

Barack Obama, our former President, posted on Twitter that he tested positive for the coronavirus. Except for “scratchy throat”, he has no other bad feeling. Luckily, his wife, the former first lady Michelle Obama tested negative. To be sure he will recover soon. Once again, timely vaccination reduces not only the risk of infection but […]

Do Pregnant Women Have a Higher Chance of Getting Coronavirus (COVID-19)? Experts don’t know if pregnant women are more likely to get coronavirus than other people. But because of the changes women go through during pregnancy, they may be more likely to get some infections. Current evidence suggests that the chance of a newborn catching […]

The CDC has given the OK to lift indoor mask mandates in much of the US, and a growing number of states no longer require face coverings in schools. But most experts agree that masks slow school spread of SARS-CoV-2, and whether now is the right time to allow teachers and students to unmask are […]

With the coming of summer, the weather begins to get hot. The face masks are found easy to get wet. Does a wet mask still work? If your mask is slightly wet, how do this wetness and humidity affect its performance? Fortunately, scientists have tested the effectiveness of wet masks. Researchers tested the performance of […]

Most mature men like to have a beard, but men with bushy beards, they should consider changing their appearance at this stage (severe covid-19) if they choose to wear N95 masks in the relative high-risk area. OSHA does not suggest people have thick facial hair to do fitting tests towards N95 masks cuz a beard […]