The development of COVID vaccines has already been explosive. There are more innovations on the way.
Articles on COVID-19 variants
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This new sub-variant of the delta has gained a foothold in the UK.
Vaccine donations are unsustainable and often inefficient to scale. They are a temporary solution to a systemic issue.
The risk of COVID-19 exposure from high-touch surfaces within grocery stores is low if physical distancing guidelines and recommended cleaning protocols are followed.
Delta is more contagious and appears to be more deadly. And it’s more likely to land those infected in hospital and intensive care. Here’s what the latest evidence says about the dominant variant.
Making rapid antigen tests for COVID-19 cheaper and more accessible can catch the infectious cases before they spread and help everyone resume normal activities safely.
When the coronavirus copies itself, there is a chance its RNA will mutate. But new variants must jump from one host to another, and the more infections there are, the better chance this will happen.
B1621 has a “constellation of mutations” that could help it escape the effects of vaccines – but evidence on its effects is currently limited.
We shouldn’t be too worried about Mu. It’s reassuring that despite being around since January, it doesn’t seem to be outcompeting Delta.
It’s not spreading widely, and it’s not at Australia’s doorstep. The tools we have in place work against the coronavirus.
Amid uncertainties about what the pandemic will look like this fall, experts answer questions about risks of infection in unvaccinated children and the risks of missing in-person school.
We are being cautious about the implications for vaccine efficacy and transmissibility while we gather more data to understand this lineage.
With no vaccination yet in children under 12, preventing COVID-19 spread in schools depends on fine-tuning policy interventions according to local epidemiology and vaccination rates.
Vaccinations, masks and some distancing – along with low community transmission – can help protect students in classrooms and cafeterias.
In Africa, it’s more rational to prioritise vaccine access, rapid rollout and community engagement, than pushing the narrative of vaccine-induced population immunity.
SARS-Cov-2 has experienced roughly the same amount of evolutionary change during the pandemic as humans have since Homo habilis first walked the Earth about 2.5m years ago.
New variants of the COVID-19 virus may be more contagious and cause more severe disease than the original. A pediatrician and infectious disease specialist explains why.
After the CDC changed course in late July, recommending universal masking indoors, Nevada became the first state to adopt a flexible masking policy that can quickly adjust to changing COVID-19 rates.
Preliminary evidence suggests Lambda has an easier time infecting our cells and is a bit better at dodging our immune systems. But vaccines should still do a good job against it.
Britain is ‘opening up’ after months of COVID-19 restrictions. But it could also be opening itself up to court action for breaching international human rights laws.
Top contributors
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Professor, Biochemistry, Trinity College Dublin
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Professor in Applied Mathematics, University of Canterbury
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Professor of Microbial Evolution at The Milner Centre for Evolution, University of Bath
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Adjunct professor, Te Herenga Waka — Victoria University of Wellington
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Professor of Public Health, University of Otago
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Instructor of Human Immunology, Emory University
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Director of the Centre for Epidemic Response and Innovation (CERI) at Stellenbosch University and the KwaZulu-Natal Research Innovation and Sequencing Plaform (KRISP)., Stellenbosch University
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Senior Lecturer, University of Auckland, Waipapa Taumata Rau
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Early Career Research Leader, Emerging Viruses, Inflammation and Therapeutics Group, Menzies Health Institute Queensland, Griffith University
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Professor of Public Health, University of Otago
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Professor of Pathology, Microbiology and Immunology, University of South Carolina
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Principal Medical Scientist at National Institute for Communicable Diseases (NICD), National Institute for Communicable Diseases
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Professor, Biology, York University, Canada
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Senior Lecturer, The University of Queensland
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Associate Professor and Research Leader in Virology and Infectious Disease, Griffith University