Coronavirus vaccines reduce the risk of long-lasting Covid-19 appearancewhile those who were unvaccinated and suffered from such persistent symptoms, show improvement after vaccination, according to a new British study that evaluated all available data internationally.
The UK Health Insurance Agency (UKHSA) study analyzed data from 15 UK and international surveys, many of which looked at whether vaccination protects against long-acting Covid-19, while others focused on the impact of vaccination on those who were already long-term. Covid-19, but had not been previously vaccinated.
The conclusion, according to the BBC and the Guardian, is that vaccines, in addition to reducing the risk of infection, hospitalization and death, also halve the likelihood that if one eventually becomes infected with the coronavirus, one will not develop symptoms for months such as fatigue, headaches, weakness, muscle aches, dizziness, shortness of breath, loss of smell or taste, etc.
Also, the unvaccinated with long Covid-19, who are then fully vaccinated, have on average fewer or milder long-term symptoms than those who remain unvaccinated. Long-acting Covid-19 vaccines appear to be more effective in those over 60 years of age, and improvement in their symptoms can occur either immediately or gradually over the course of a few weeks.
At present, scientists do not have enough data to explain exactly how the vaccination reduces the chance of long Covid-19. One possible explanation is that vaccines help eliminate the remaining traces of the virus in the body, which can trigger chronic inflammation. Another interpretation is that vaccination better balances the immune response in individuals whose symptoms are due to an autoimmune overreaction of their immune system.
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