Side effects of booster shot

Coronavirus: 1 in 20 people are likely to experience THIS side effect from COVID-19 booster shot.

All about post-vaccination side effects

Amid new emerging variants, coronavirus booster shots have become the talk of the town. The demand for the third vaccine dose have increased over the past couple of months and several countries have begun administering the same, including India, where healthcare and frontline workers and those aged 60 and above are now eligible to receive their ‘precaution’ dose.

Side effects from a coronavirus vaccination are common. Fever, fatigue, pain at the injection site and body pain are some of the most prevalent side effects of COVID vaccines, which point to the body’s immune response. However, with booster vaccines, experts have added another symptom to the list, which although less prevalent could cause distress.

Vaccine booster side effect that has come to light and why it occurs

In Therapeutic Goods Administration’s COVID vaccine safety report of 2022, the Australian Government’s Department of Health said that swollen lymph nodes were one of the most prevalent “adverse events” or side effects of a booster or third vaccine dose, that was reported in about “one in 20” people.

The research found that 1 in 20 people who were administered theĀ Pfizer reported swollen lymph nodes and one in 10 people who received Moderna complained of the same side effect.

Experts believe this is due to the immune response triggered by the vaccine in the body. Lymph nodes or glands are small, bean-shaped clusters of cells that contain different types of immune system cells, which help fight infections. When the lymph nodes swell, it is a sign that something is not right in the body. Swollen lymph nodes occur as a result of infection from bacteria or viruses.

That said, when your body receives a booster jab on the upper arm, it builds SARS-CoV-2 virus spike proteins, which is then carried by the cells to the nearest lymph nodes – situated in the armpit. This can cause swelling and pain.