You may have some side effects, which are normal signs that your body is building protection. These side effects may affect your ability to do daily activities, but they should go away in a few days. Some people have no side effects// Centers for Disease Control and Prevention
Anaphylaxis after COVID-19 vaccination
Severe allergic reactions, including anaphylaxis, can occur after any vaccination. Anaphylaxis after COVID-19 vaccination is rare. If this occurs, vaccination providers can effectively and immediately treat the reaction.
CDC and FDA scientists have evaluated reports from people who experienced a type of severe allergic reaction—anaphylaxis—after getting a COVID-19 vaccine. Anaphylaxis after COVID-19 vaccination is rare and occurred in approximately 2 to 5 people per million vaccinated in the United States based on events reported to VAERS. This kind of allergic reaction almost always occurs within 30 minutes after vaccination. Fortunately, vaccination providers have medicines available to effectively and immediately treat patients who experience anaphylaxis following vaccination. Learn more about COVID-19 vaccines and allergic reactions.
Older adults could experience fewer side effects
While the coronavirus vaccines have been shown to be effective in older adults, people age 50 and older experience fewer side effects than younger recipients.
Only about 25 percent of people ages 50 to 64 and 4 percent of those ages 65 to 74 who received the Moderna or Pfizer-BioNTech vaccine between Dec. 14 and Jan. 13 experienced side effects, according to CDC data. Meanwhile, 65 percent of those under 50 reported a reaction.// AARP
Overall effectiveness has been reported in the range of 70% to 95%. That’s well above the average effectiveness of the flu vaccine, for example.Harvard Health Publishing
- A Pfizer/BioNTech vaccine trial involving nearly 44,000 volunteers found vaccination to be 95% effective. This vaccine is authorized for use in the US.
- A Moderna vaccine trial enrolling more than 30,000 volunteers reported an effectiveness of 94%. This vaccine is authorized for use in the US.
- An AstraZeneca/Oxford vaccine trial reported average effectiveness of 70% with full doses, but even better results (as high as 90%) with a lower dose. This vaccine is authorized for use in Great Britain, but not in the US.
- A Johnson & Johnson (Janssen) trial reported overall effectiveness of 66% (72% in the US) in preventing moderate to severe COVID-19. This vaccine is authorized for use in the US.
So far, we know COVID-19 is an unpredictable and potentially deadly disease. And the information we have about the effectiveness and safety of COVID-19 vaccinations is encouraging. Minor side effects should be expected; severe allergic reactions may rarely occur. Side effects from the vaccine are not reasons for most people to avoid vaccination.
As the number of vaccine recipients and the number of different vaccines grow, vigilance is warranted. What we know today about side effects and safety won’t be the last word. Volunteers in clinical trials and members of the public who have received vaccinations continue to be monitored, and are encouraged to report problems.
Possible Effects of COVID19 Vaccines (rjvillanueva.com)
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