An Australian group has examined how long coronavirus can exist on different surfaces and at different temperatures. What does this really mean?
There was never much evidence in favor of using hydroxychloroquine (HCQ) as a treatment for COVID. Now, a trial involving over 4,700 patients definitively proves that HCQ does not work.
The proposal in the Declaration is certainly worth considering. If I was a policymaker, I would investigate how to implement it. As COVID cases spike in Europe, which once had the coronavirus under control, it's becoming clear that our current on-again, off-again approach to containment isn't working as intended. It may be time to try something new. 
There have been several significant developments in recent days regarding the ongoing COVID-19 pandemic and the hunt for a successful vaccine. We discuss some of them below.
Face masks and social distancing are the primary tools currently available for limiting the spread of COVID-19. The mask serves two functions: protecting the wearer by limiting the inhalation of airborne particles [1] and protecting others by reducing transmission of virus particles exhaled by an infected individual. This second role has not always been recognized nor well quantified. [2] 
An article in the latest edition of the Journal of the American Medical Association reports that when it comes to risk from the coronavirus, air travel is much safer than you might believe. It is safer than shopping in a supermarket, riding on a train, or going to work in an office. Why? It's all about the air quality in the cabin.
A group of researchers reports an association between low vitamin D levels and COVID-19 infection. Is this a true cause-and-effect relationship? Or are we seeing an excellent example of selection bias? Let's take a look.
Europe is "catching up" to the U.S. in terms of new COVID cases. Besides the "farewell party" that Czechia threw for the pandemic, what else went wrong?
Given that more than 200,000 Americans have died (at least in part) due to COVID-19, there seems little to lose and much to gain by green-lighting human challenge trials in which volunteers are vaccinated and then deliberately infected with coronavirus. The U.S. should follow the UK's lead.
It's now more than seven months into the pandemic in the U.S. and doctors and scientists have been trying pretty much everything -- with little to show for their efforts. Perhaps the most effort has gone into finding drugs to prevent the immune system meltdown caused by the virus. Here's another: Can a simple, safe, approved drug called phenylbutyric acid tread the line between under- and over-treatment of the immune system by reducing cell stress?
Brucellosis is a bacterial infection often associated with the consumption of raw food. Apparently, another source of infection is Chinese pharmaceutical companies. Who wants a Chinese COVID vaccine?
A new paper claiming that the SARS-CoV-2 coronavirus was genetically engineered in a laboratory has several red flags. It should not be taken seriously.