Ghana’s mid-year target of procuring and administering 17.6 million COVID-19 vaccine doses may be constrained by global supply, cold chain capacity, and vaccine hesitancy.
These variants are definitely cause for concern. But there’s every indication we can adapt our vaccine strategy to combat these and other variants going forward.
A bat virus discovered a decade ago in Cambodia indicates that pangolin trafficking remains a credible explanation for the origin of the Covid-19 pandemic.
The virus is evolving and new strains are more transmissible. Will the vaccines work against these new variants? How can researchers stay ahead of the virus’s evolution?
Recently announced travel restrictions are intended to curb the spread of COVID-19 variants. However, we need to do a better job of tracking arrivals into the country.
Getting pharmacies more involved could be a game changer, particularly for reaching minorities, older adults without internet access and others left behind.
Ever since the 2001 SARS outbreak and H5N1 avian flu in 2003, we’ve developed tools to monitor diseases that transmitted from animals to humans. But what does a large-scale roll-out entail?
The microbes in your gut influence how your immune system reacts to bacteria and viruses. A severe immune reaction is deadly; a small one lets the virus win. The right balance may depend on your diet.
Scientists have observed that 501Y.V2 has quickly become “dominant” among multiple variants that have been circulating in the South African population.
Multiple COVID-19 variants are circulating around the world and becoming more common. These mutations can alter the ability of the virus to take hold and replicate within our cells.
We’ve gone from a novel virus to several COVID-19 vaccines in less than a year. Here’s what we’ve learned from earlier vaccines to allow this to happen.
COVID-19 has been found in pets, zoo animals and in a wild mink in Utah. Monitoring wildlife for COVID-19 is important for animals and humans, both of whom face risks from a jumping virus.
The new SARS-CoV-2 variant is already spreading in the US and could be dominant by March, the CDC warns. Here’s what that means for the masks you choose and how you practice social distancing.
Dean Faculty of Health Sciences and Professor of Vaccinology at University of the Witwatersrand; and Director of the SAMRC Vaccines and Infectious Diseases Analytics Research Unit, University of the Witwatersrand