COVID-19 vaccines are unlikely to weaken immunity. They do not ensure "permanent vaccine dependency."
Various posts on social media have claimed that COVID-19 vaccines build immunity against the virus but dramatically weakens one’s natural immunity. The posts state that vaccines can eventually kill an individual or make them less immune to stronger variants of the virus.
These posts are false. Long-term health problems associated with COVID-19 vaccines are infrequent. Certain blood clot cases were observed following the AstraZeneca vaccine specifically, but health experts noted that such instances usually do not outweigh the overall effectiveness of vaccines. The BBC has reported that the chance of death due to such an adverse effect is between four and 11 in a million.
Millions of people have received COVID-19 vaccines, and no long-term side effects have been detected. The Centers for Disease Control and Prevention states that the safety of COVID-19 vaccines is being continuously monitored to address any complications.
Scientists are yet to firmly determine how long an individual remains immune after vaccination, but early studies have indicated that immunity may last up to 90 days. However, experts recommend vaccination even for those who have recently recovered from COVID-19, as the antigens produced in the body may not be strong enough to protect one from the emerging variants of the disease.