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Covid-19 Vaccines Myth-busting

13 April 2022   22:38 Diperbarui: 13 April 2022   22:41 362
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According to Johns Hopkins researchers Debes et al. (2021), Covid-19 vaccines followed by little to no side effects still produce an adequate amount of spike antibodies to neutralize SARS-Cov-2. Pfizer-BionTech clinical trial results showed that 50% of participants did not report significant side-effects, yet 90% developed immunity against Covid-19. Moderna also reported that only 10% of its clinical trial participants experienced common side effects, but 95% still developed immunity. Different people show different reactions when developing protective immunity against viruses.  In most cases, the innate immune response is what causes common side-effects by initiating inflammation, while the adaptive immune response only assists innate immunity throughout the process (Cronkite & Strutt, 2018). When the inflammatory response is exaggerated in some people, side-effects such as injection site pain, fever, fatigue, diarrhea, and dizziness may occur. Previous studies suggest that several factors such as age and gender may contribute to the exaggeration of inflammatory immune responses. People above the age of 65 have been reported to show fewer side-effects to the Covid-19 due to gradual age-related decline in immune activity (Weinberger et al., 2008). This decline is also related to lower antibody levels, but adequate protection against the virus is still provided. Women are almost 4 times more likely than men to show vaccine side-effects (79% to 31%) (Gee et al., 2021). Since testosterone is known to help suppress inflammation, men who produce 20 times more testosterone than women experience fewer side-effects (Kanda et al., 2003). However, antibody count is not affected.

Common covid-19 vaccine symptoms. Credit: Bangkok Hospital (2021).
Common covid-19 vaccine symptoms. Credit: Bangkok Hospital (2021).

Conclusion

Although different people show distinct reactions to the Covid-19 vaccine, immunity against Covid-19 is still established. Either way, the vaccine provides protection. Therefore, all WHO-approved Covid-19 vaccines are effective in protecting the body against serious Covid-19 illnesses. Vaccine brands and side effects should not be the basis of deciding whether or not to get vaccinated. You too, should get vaccinated immediately (if not already)--- to protect yourself and your loved ones. 

Click here to register yourself for a Covid-19 vaccine in Indonesia!

References 

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