Coronavirus variants: how did they evolve and what do they mean?
Although not all the mutations are thought to be important, the effect of any individual mutation might be changed by the presence of other mutations (an effect called epistasis).
Will coronavirus really evolve to become less deadly?
There is little or no direct evidence that virulence decreases over time. While newly emerged pathogens, such as HIV and Mers, are often highly virulent, the converse is not true.
Medical oxygen should not be a luxury – we’re trying to develop a cheaper way to produce it
Oxygen is mostly obtained from liquefied air. Engineers turn the air we breathe into a liquid, using a combination of processes that cool down gases until they condensate.
Covid vaccines: why waiving patents won’t fix global shortage – scientist explains
South Africa and India have petitioned the World Trade Organization (WTO) to waive certain IP protections, for a limited time, that relate to products for preventing, containing or treating Covid-19.
Covid in India: the deep-rooted issues behind the devastating crisis
India is an inherently high-risk country for an epidemic. The country holds 1.4 billion people, living in crowded areas with extensive community networks and limited facilities for sanitation, isolation and healthcare.
How can all schools safely reopen?
Infection with the Covid-19 virus has been less common in school-age children, especially those in elementary school, than among other age groups.
Here’s how to help your kids break out of their pandemic bubble and transition back to being with others
As children and adolescents begin to leave isolation and return to public spaces, they might worry more about becoming sick.
The ins and outs of Kenya’s Covid-19 vaccine rollout plan
Vaccine rollout will be done in three phases. The first involves 1.25 million people and runs between now and June 2021. Phase two will run between July 2021 and June 2022, targeting the most vulnerable, including the elderly and those above 18 years with comorbidities. It targets 9.76 million people.
Backlash against Johnson & Johnson’s Covid-19 vaccine is real and risky – here’s how to make its rollout a success
If states don’t plan carefully for how the vaccines are distributed, the result could be a nightmare of frustrated patients and wasted vaccine.
Lessons from around the world on fighting Covid’s second wave
The World Health Organization stresses the importance of not just identifying cases, but following them up and giving support. They estimate that on average each case needs three days of work from the testing and tracing team.