Two scientists claim that the genome pairing CGG-CGG is evidence that SARS-CoV-2 was made in a lab.
The research community is taking a closer look at the lab-leak hypothesis for the origin of COVID-19, prompting discussion about the risks and benefits of engineering viruses.
China has administered more than one billion doses of its homegrown COVID-19 vaccines, the majority of which were developed by local companies Sinovac and Sinopharm. So what do we know about them?
The Delta variant: What it is, where it came from, why it's different and whether COVID-19 vaccines can prevent it.
Various companies use different ingredients and different delivery systems in their COVID-19 vaccines. Researchers are investigating whether it's better for individuals to mix what's available.
Health workers have long called for better protections against COVID-19. Well fitting masks are now required when caring for COVID-19 patients. But the guidelines on ventilation miss the mark.
People who contract COVID, and their contacts, have successfully self-isolated at home since the pandemic began.
There are several earlier examples of people studying infectious pathogens being infected in the laboratory, even while working under strict biosafety conditions.
We recently heard reports of a new and dangerous 'hybrid' variant circulating in Vietnam. There is such as a thing as a hybrid viral variant — but this doesn't appear to be it.
It is unlikely that we will reach full herd immunity for COVID-19. However, we are likely to reach a practical kind of herd immunity through vaccination.
Scientists have discovered that SARS-CoV-2 can evade neutralising antibodies by fusing cells.
Both the AstraZeneca and Pfizer vaccines still work relatively well against it — though only after the second dose.
Gain-of-function studies make a natural virus more dangerous or transmissible to humans. Could the Wuhan Institute of Virology be the source of SARS-CoV-2?
We have the chance to build a world class, dedicated quarantine facility. Here's how we could do it.
Chance matters. It's unlikely Victoria is doing anything that 'makes us' more likely to have outbreaks leading to lockdowns.
The lab accident theory of the origins of Covid-19 has gained traction in recent months. We need a proper investigation to find out what really happened.
A more coordinated effort by scientists, stakeholders and community members will be required to stop the next deadly virus that's already circulating in our midst.
This treatment would work by targeting the SARS-CoV-2 virus itself and stopping it in its tracks. The evidence we have so far is promising, but it's still very early days.
It's an absolute priority we find and use ways to support kids to continue face-to-face learning in times of low community transmission, especially primary schools.
Viruses want to pass on their genetic material. Recognizing this about SARS-CoV-2 provides insight into how the world is still vulnerable to COVID-19.