People who have been fully vaccinated for COVID-19 yet still get infected with the delta strain could transmit the infection to unvaccinated people, Centers for Disease Control and Prevention Director Rochelle Walensky said Tuesday in justifying renewed recommendations for mask-wearing.
“In rare occasions, some vaccinated people infected with the delta variant after vaccination may be contagious and spread the virus to others,” she told reporters on Tuesday.
“This new science is worrisome and unfortunately warrants an update to our recommendations.”
Previous recommendations from the agency were based on COVID-19 monitoring data that indicated vaccinated people rarely transmit the virus to others.
Walensky said CDC investigations have found that the amount of virus present in vaccinated people infected with Delta is similar to the levels found in unvaccinated people with Delta infections.
That’s an indication that vaccinated people can easily transmit the virus – even if they’re less likely to get sick on the whole.
In areas of high transmission, Walensky said, about 1 in 20 – or even 1 in 10 – of a person’s contacts could lead to a breakthrough infection (a case diagnosed after someone is fully vaccinated). That’s assuming vaccines are 90% to 95% effective.
However, about two-thirds of the general population have COVID-19 antibodies and 67.6% of India’s population were exposed to the disease, the fourth serosurvey conducted by ICMR during the June-July 2021 period found.
The US Food and Drug Administration has warned that Johnson & Johnson’s single-dose Covid-19 vaccine can cause Guillain-Barre syndrome, a rare disorder where the immune system attacks the nervous system and can result in paralysis.
Meanwhile, Norway has announced that you are at a greater risk of dying from AstraZeneca vaccine branded as Covishield in India than from COVID-19. While waiting for the final decision on the controversial vaccine, Norway has meanwhile decided to offload its stock of AstraZeneca to fellow Nordic countries that actually want to use them despite the associated risks.
Even the European Medicines Agency’s (EMA) safety committee has added another blood condition to the potential side effects of AstraZeneca’s vaccine branded as Covishield in India – the Capillary Leak Syndrome.
Capillary leak syndrome is a condition that causes fluid to leak out of blood vessels and could cause very low blood pressure, leading to pain, nausea and tiredness or, in the worst case, kidney failure and strokes.
On the other hand Portugal has accused the British government of lying about the cases of Nepal mutation and creating panic of what the authorities tried to portray as a ‘Super Indian Variant‘.