For the lab leak theory to be true, SARS-CoV-2 must have been present in the Wuhan Institute of Virology before the pandemic started. But there’s not a single piece of data suggesting this.
Animal reservoirs and people who experience chronic COVID infections could potentially see the emergence of new variants. But these variants aren’t necessarily cause for concern.
Data suggests most of the time infection results in either no symptoms or very mild disease for cats and dogs. And the duration of their symptoms, if they get them, may be very short.
A new COVID variant, BA.2.75, has been detected in the UK and several other countries. But the data we have at the moment doesn’t suggest there’s any reason to panic.
President Joe Biden tested positive for COVID-19 on July 21, 2022, but was reportedly feeling well enough to work and take calls, as seen in this photo released by the White House.
Adam Schultz/The White House via AP
According to a letter from Biden’s doctor, the president has a runny nose, mild fatigue and a slight cough. The letter also noted that Biden began taking an antiviral drug the morning he tested positive.
A study from Thailand documents a case of a veterinarian catching COVID after an infected cat sneezed on her.
The clue is in your poo. Two experts explain the history and science behind wastewater surveillance.
Intuitively, we would assume that subsequent infections should be less severe. But this won’t always be the case.
Millions of U.S. children between the ages of 6 months and 4 years will soon be eligible for COVID-19 shots.
FatCamera/E+ via Getty Images
The FDA’s authorization of COVID-19 shots for children ages 6 months to 4 years will bring relief for millions of parents. Pending CDC endorsement, shots for this group will be available within days.
‘Hybrid immunity’ is the term for immunity acquired from both prior infection and vaccination.
Testing wastewater for the presence of diseases has grown in popularity during the COVID-19 pandemic.
The COVID-19 pandemic has seen an increase in wastewater testing to monitor the spread of the virus. But historical cases show that targeted surveillance can further marginalize vulnerable populations.
Global Justice campaigners in London stand by fake coffins to highlight global COVID-19 deaths. If pharma companies waived intellectual property rights, it would be easier for low- and middle-income countries to access COVID-19 vaccines.
(AP Photo/Alastair Grant)
Waiving patent rights on COVID-19 vaccines and drugs is still crucial to ensure access globally, but the waiver on the table at the June World Trade Organization meeting doesn’t do the job.
Achieving herd immunity via vaccination was always going to be a hard ask. Now it’s mathematically impossible.
About 8 million U.S. children have received two shots of COVID-19 vaccine and are now eligible for a third.
KoldoyChris/Moment via Getty Images
The COVID-19 vaccines continue to be effective against severe illness leading to hospitalization and death in all age groups, including children ages 5 to 11.
Scientists are working on intranasal COVID vaccines. Not only are these vaccines delivered differently – but they also target a different part of our immune system.
With the right training, dogs can sniff out more than 90% of COVID cases.
I Wei Huang/Shutterstock
Even taking into account people who have had COVID but didn’t know it, there’s still likely to be a group of people who have never been infected.
Cave inhabited by bats.
Scientists exploring the possibility of an animal origin for Covid-19 are still investigating the missing link between bats and human beings.
Once in short supply, rapid antigen tests are now available throughout the U.S.
Boy_Anupong/Moment via Getty Images
With the relaxation of mask-wearing mandates, there’s even more need to know how much over-the-counter tests help.
Policies to stop the spread of COVID disadvantaged mothers and newborns.
The direct effects of COVID-19 disease on pregnant women, newborns and children are acknowledged. But the indirect effects of the pandemic have been equally devastating.