BB News – Health – Covid-19: How vaccinated people can still spread virus

People who have been fully vaccinated against Covid-19 can still pass on the virus to others, even if they don’t get sick, scientists have warned. The risk of transmission is much lower than it is for unvaccinated people – but it’s not zero. A study, published in the journal The Lancet Infectious Diseases, found that people who were vaccinated with the Pfizer-BioNTech vaccine were 63% less likely to transmit the virus to someone else than unvaccinated people. However, the study also found that vaccinated people were still able to transmit the virus to others if they were exposed to a large amount of the virus, such as from someone who was infected with the Delta variant. The scientists say their findings highlight the importance of vaccination for reducing transmission of the virus, but they also say that other measures, such as social distancing and mask-wearing, are still important. In the UK, the government has said that people who have been fully vaccinated no longer need to self-isolate if they come into contact with someone who has tested positive for Covid-19. However, they are still advised to get a test to check if they have the virus and to isolate if they test positive. The World Health Organization (WHO) has also said that vaccinated people should still take precautions to protect themselves and others, such as wearing a mask in crowded places and avoiding large gatherings. The scientists behind the study say that their findings do not mean that vaccines are not effective. They say that vaccines are still the best way to protect people from getting seriously ill from Covid-19 and to reduce transmission of the virus. However, they say that it’s important to be aware that vaccines do not completely eliminate the risk of transmission. The study was conducted by researchers from the University of Oxford and the University of California, Berkeley. They studied data from over 3,000 people who had been in close contact with someone who had tested positive for Covid-19. The researchers found that people who were vaccinated with the Pfizer-BioNTech vaccine were 63% less likely to transmit the virus to someone else than unvaccinated people. However, they also found that vaccinated people were still able to transmit the virus to others if they were exposed to a large amount of the virus, such as from someone who was infected with the Delta variant. The scientists say their findings highlight the importance of vaccination for reducing transmission of the virus, but they also say that other measures, such as social distancing and mask-wearing, are still important. In the UK, the government has said that people who have been fully vaccinated no longer need to self-isolate if they come into contact with someone who has tested positive for Covid-19. However, they are still advised to get a test to check if they have the virus and to isolate if they test positive. The World Health Organization (WHO) has also said that vaccinated people should still take precautions to protect themselves and others, such as wearing a mask in crowded places and avoiding large gatherings. The scientists behind the study say that their findings do not mean that vaccines are not effective. They say that vaccines are still the best way to protect people from getting seriously ill from Covid-19 and to reduce transmission of the virus. However, they say that it’s important to be aware that vaccines do not completely eliminate the risk of transmission..

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