Sep 03, 2021 11:47:00

Research results show that vaccination reduces the risk of sequelae of the new corona by half

Symptoms such as fever and cough caused by the new coronavirus infection (COVID-19) may recover in a short period of time even if they develop, while those

who experience 'Long COVID ' that the symptoms continue for weeks to months. There is also. A new study by Michela Antonelli and colleagues at King's College London shows that those who have been vaccinated twice have a halved incidence of Long COVID that lasts more than four weeks.

Risk factors and disease profile of post-vaccination SARS-CoV-2 infection in UK users of the COVID Symptom Study app: a prospective, community-based, nested, case-control study --The Lancet Infectious Diseases
https://www.thelancet.com/journals/laninf/article/PIIS1473-3099 (21) 00460-6

Coronavirus vaccine cuts risk of long Covid, breakthrough infections: Lancet: The Tribune India

https://www.tribuneindia.com/news/health/coronavirus-vaccine-cuts-risk-of-long-covid-breakthrough-infections-lancet-305596

Antonelli et al. Collected data from the iOS / Android app ' COVID Symptom Study ' distributed to the British people and analyzed the daily health condition, COVID-19 symptoms, and vaccination status that users self-reported. And did a survey to track your health. The subjects were users who reported their health status between December 2020 and July 2021, including those who had not been vaccinated and those who had been vaccinated once or twice.

According to Antonelli and colleagues, 0.5% of people who received at least one Pfizer & BioNTech, Moderna, or AstraZeneca vaccine tested positive at least 14 days after vaccination. It is said that 0.2% of the cases were diagnosed as positive by the test more than 7 days after the second inoculation.

In addition, Antonelli et al. Also investigated a case of users who continued to report their health status for a long time and reported Long COVID, which had symptoms for more than 28 days after a positive diagnosis. Long COVID was reported by 11% of reporters for unvaccinated individuals, but 5% of reporters for users who were diagnosed positive more than 7 days after the second vaccination. It turned out that the probability of Long Covid was reduced to less than half by finishing the vaccination.

'It seems good news to find that two vaccinations reduce the risk of viral infection and the risk of Long COVID,' said collaborator Claire Steves.