The CDC has said COVID-19 vaccines can cause side effects for a few days that include fever, chills, headache, swelling or tiredness, “which are normal signs that your body is building protection.” However, severe reactions are extremely rare.

Dear Dr. Samir!

According to the studies, fever, muscle aches are among the most common negative side effects in the US:

1) Meredith Wadman (2020). Fever, aches from Pfizer, Moderna jabs aren’t dangerous but may be intense for some, November 18, 2020, © 2020 American Association for the Advancement of Science Open Access:

https://www.sciencemag.org/news/2020/11/fever-aches-pfizer-moderna-jabs-aren-t-dangerous-may-be-intense-some

More time is needed to gather relevant data from people who have been vaccinated:

1) Mohammad Hossain Shariare et al. (2020).The growing complexity of COVID-19 drug and vaccine candidates: challenges and critical transitions, Journal of Infection and Public Health, 15 December 2020, In Press, Journal Pre-proof, Open Access:

Article The growing complexity of COVID-19 drug and vaccine candidat...

2) US Food & Drug Administration (2020).Pfizer-BioNTech COVID-19 Vaccine Frequently Asked Questions: "Q: Are vaccine providers required to report side effects?

A: Providers administering Pfizer-BioNTech COVID-19 Vaccine must report to the Vaccine Adverse Event Reporting System (VAERS) and to Pfizer the following information associated with the vaccine of which they become aware: 

• Vaccine administration errors whether or not associated with an adverse event
• Serious adverse events (irrespective of attribution to vaccination)
• Cases of Multisystem Inflammatory Syndrome
• Cases of COVID-19 that result in hospitalization or death" Available at: https://www.fda.gov/emergency-preparedness-and-response/mcm-legal-regulatory-and-policy-framework/pfizer-biontech-covid-19-vaccine-frequently-asked-questions
• NHS (2020). Side effects of the coronavirus vaccine, NHS Informs, 17 December 2020, Available at: https://www.nhsinform.scot/healthy-living/immunisation/vaccines/coronavirus-covid-19-vaccine/side-effects-of-the-coronavirus-vaccine Yours sincerely, Bulcsu Szekely

Dear Dr. Samir!

Please You look also following links:

https://www.nytimes.com/2020/12/08/world/europe/coronavirus-vaccine-uk-questions.html

https://www.bbc.com/news/health-55244122

https://www.gov.uk/government/publications/regulatory-approval-of-pfizer-biontech-vaccine-for-covid-19/information-for-uk-recipients-on-pfizerbiontech-covid-19-vaccine

4. Possible side effects

Like all vaccines, COVID-19 mRNA Vaccine BNT162b2 can cause side effects, although not everybody gets them.

Most side effects are mild or moderate and go away within a few days of appearing. If side effects such as pain and/or fever are troublesome, they can be treated by medicines for pain and fever such as paracetamol.

Side effects may occur with following frequencies:

Very common: may affect more than 1 in 10 people

• pain at injection site
• tiredness
• headache
• muscle pain
• chills
• joint pain
• fever

Common: may affect up to 1 in 10 people

im waiting the best answer ehe.

Few of my friends who got vaccinated in US reported muscle soreness and fever.

Side effects like headache, muscle soreness or fever are effects that occur with almost every vaccine we normally do, so I wouldn't consider those as a problem.

Serious side effects I have heard of are fainting, anaphylactic shock or even death. Well, let's analyze them:

From the 2 cases of strong anaphylactic shocks in the UK is later emerged the patients had serious allergic problems with several records of hospitalizations in their past.

During the test of Pfizer BioNTech vaccine instead, 6 people reportedly died: 2 had received the vaccine, the other 4 had instead received a placebo composed by saline solutions, hence harmless. It is worth remembering these 2 death given by the actual vaccine are to be compared to the number of people to whom the vaccine has been injected during the tests, that is 20000. This number is therefore statistically irrelevant.

There is no need to worry, vaccines have been studied, tested and analyzed even by competent national and federal agencies. Vaccines are safe.

The CDC has said COVID-19 vaccines can cause side effects for a few days that include fever, chills, headache, swelling or tiredness, “which are normal signs that your body is building protection.” However, severe reactions are extremely rare.

The CDC has saidthat COVID-19 vaccines can cause side effects for a days that include fever, chills, headache,swelling or tiredness “which are normal signs that human body is bilding protection. However, severe reactions are extremely rare.