Kalidou Koulibaly will miss Saturday’s league trip to Genoa.© Instagram Napoli defenders Kalidou Koulibaly and Faouzi Ghoulam have both tested positive for coronavirus, the Serie A club confirmed on Friday. Senegalese international Koulibaly, 29, returned a positive after 30-year-old Algerian Ghoulam’s result was announced earlier in the day. The clubContinue Reading

AstraZeneca vaccine: delaying the second dose increases protection, according to new data

Yuganov Konstantin/Shutterstock The Oxford/AstraZeneca vaccine is effective at preventing people from developing COVID-19 and could reduce viral transmission, according to a new scientific paper from the team behind the vaccine. The paper also suggests that delaying the second dose to 12 weeks after the first works especially well. The protectiveContinue Reading

Coronavirus might become endemic – here's how

fizkes/Shutterstock Endemic viruses are those that have constant presence within a geographical area. Such viruses are all around us, though they vary by location. Examples in Europe and North America include the rhinovirus (a cause of the common cold) and influenza virus, while the dengue and chikungunya viruses are endemicContinue Reading

COVID vaccine weekly: developing boosters for new mutations

Gorodenkoff/Shutterstock There’s now another dimension to the race to get people vaccinated. The coronavirus is mutating, potentially making current vaccines less effective against it. This isn’t a catastrophe – the vaccines still work. But preliminary data suggests their ability to protect against certain variants of the virus is now weaker.Continue Reading