Some have suggested the US allow healthy people to return to normal life, catch the coronavirus and get the population to herd immunity. The science says this plan is doomed to fail from the start.
Time changes make many people feel tired, irritable, and unable to sleep.
These drugs may help slow or reverse immune system decline.
Vaccines work by teaching your immune system about new viruses. Your immune cells are very clever – they will remember what they learnt, and protect you if you encounter that virus in the future.
Older coronavirus patients face grimmer outlooks. A virologist explains the aging-related changes in how immune systems work that are to blame.
The cold supply chain keeps vaccines fresh during distribution, but the current system is nowhere near large enough to distribute the billions of COVID-19 vaccines that the world needs.
Wearing face masks may allow a tiny number of viral particles to slip through, possibly allowing our body to gain some sort of immunity.
A few people have developed COVID-19 twice. That doesn't mean a vaccine can't offer long-term protection.
Senate Republicans continue to push for sweeping liability protection for companies from coronavirus-related lawsuits, but research and evidence suggests there's little real risk.
This is just one person. Is he the exception? Is he the rule? We don't know yet for sure. But reinfection is definitely possible.
Reports describe a Hong Kong man who was reinfected with the coronavirus after returning from Europe. Does that mean he wasn't immune after the first infection?
Once a coronavirus vaccine is approved, billions of doses need to be manufactured. Current vaccine production is nowhere near ready, for a variety of reasons, but planning now could help.
Some people's blood can mount an immune response against SARS-CoV-2, even if those blood samples were taken from before the COVID-19 pandemic started.
Researchers can't agree on topics such face mask, immunity and number of infections. Here's why.
Despite a lighter lockdown, Sweden hasn’t avoided the damaging economic disruption experienced elsewhere.
The race is on to develop a vaccine for the COVID-19 coronavirus. Australian researchers are leading several major clinical trials that might help bring an end to the deadly disease.
If immunity is short-lived, we will be in an ongoing cycle of endless reinfection.
If you have had COVID-19 already, are you protected from another bout of the illness? And is the presence of antibodies in your blood a guarantee of immunity?
Expanding coronavirus testing is one of the most important tasks public health officials are tackling right now. But questions over accuracy of the two main types of tests have rightly caused concern.
Power is visibly draining away from Tom Thabane. But, even at 80 years old, he remains a wily operator, and seems determined to cause maximum trouble to secure his immunity from prosecution.