COVID vaccine side effects are real. Here’s what you should know


There are several coronavirus vaccines that are currently in Phase 3 clinical trials. For vaccines, this final experimental stage requires tens of thousands of people in order to properly assess efficacy and safety. Among other things, such a large sample size is important for detecting rare but dangerous side effects.

Most vaccine side effects are familiar to anyone who has ever gotten a jab: Sore arm, swelling or redness at the injection site, fatigue, and maybe a fever. Collectively known as reactogenicity, these are all classic signs of an inflammatory response, which is good.

Sometimes, the antibodies produced in response to the vaccine actually make an infection worse, a phenomenon known as vaccine-enhanced disease. In other cases, the antibodies elicited start attacking the patient’s own body, which is an autoimmune disorder. Most likely, the volunteer who is thought to be experiencing a serious adverse reaction to the coronavirus vaccine is suffering from one of these two conditions.

Related article:  How John Oliver was duped by the fringe anti-science advocacy groups USRTK and the Organic Consumers Association
Follow the latest news and policy debates on agricultural biotech and biomedicine? Subscribe to our newsletter.

It should be kept in mind that adverse events should not necessarily rule out a mass vaccination campaign. Once all the data are collected, scientists will need to determine if the risk of COVID-19 is greater or less than the risk posed by the vaccine. Most likely, the risk of the disease will be greater than the risk of side effects. But we don’t know for sure. That’s why we do the clinical trials.

Read the original post

Outbreak Daily Digest
Biotech Facts & Fallacies
Talking Biotech
Genetics Unzipped
Infographic: The evolutionary history of the COVID-19 coronavirus

Infographic: The evolutionary history of the COVID-19 coronavirus

Reuters analysed over 185,000 genome samples from the Global Initiative on Sharing All influenza Data (GISAID), the largest database of ...

Environmental Working Group: EWG challenges safety of GMOs, food pesticide residues

Known by some as the "Environmental Worrying Group," EWG lobbies ...
m hansen

Michael Hansen: Architect of Consumers Union ongoing anti-GMO campaign

Michael K. Hansen (born 1956) is thought by critics to be ...

Most Popular

News on human & agricultural genetics and biotechnology delivered to your inbox.
glp menu logo outlined

Newsletter Subscription

Optional. Mail on special occasions.
Send this to a friend