The Science Behind The Different Covid-19 Vaccines

• Severe allergic reaction
• Tiredness 
• Headache 
• Muscle pain
• Chills
• Joint pain
• Fever 
• Injection site swelling 
• Injection site redness
• Nausea
• Swollen lymph nodes 
• Diarrhea 
• Vomiting
• Heart inflammation (under investigation)

• In statistics, side effects of the vaccination occurred within 7 days after receiving the shot but were mostly mild
• Side effects were mostly evident after the second dosage of the vaccine
• Israel has had a couple new cases of heart inflammation found in Pfizer vaccinated patients
• Most side effects were moderate but some people had more severe side effects which had an impact on them from doing daily activities

The Pfizer vaccine was said to be 95% effective in reducing the fatalities that your body faces even if you come in contact with the disease. It is known to be the best vaccine out of all the other ones worldwide. However, there are a couple new major side effects which are being investigated through the course of the last weeks.

• Pain
• Redness
• Swelling
• Headache
• Muscle Pain
• Chills
• Fever
• Nausea
• Allergic reaction
• Tiredness

• In clinical trials, most symptoms happened to occur within 7 days after getting the first shot of the vaccine
• Fever, chills and tiredness and headache were very common to mildly occur right after taking second shot
• Moderna has had only a few circumstances where people faced severe side effects after taking the vaccine
• Most symptoms were moderate and mild, however the roll out of the vaccine has been slower compared to the Pfizer vaccine. 

The Moderna vaccine was 94.1% effective based on the clinical trials. It worked with high effectiveness with people of diverse sex, age, race, ethnicity and among people with underlying medical conditions. Although a couple cases of people were admitted to the hospital after the vaccine input, the pros outweigh the cons of contracting the disease. 

• Pain in the site of injection
• Body chills
• Tiredness
• Fever
• Blood clots (under investigation)
• Muscle aches
• Heartaches
• Joint pain

This vaccine has a 74.6 % effective rate. However this is not including the protection of the multiple variants that have recently been identified worldwide. Many people have been identified with blood clots that have also caused a few deaths for younger adults and children. They are investigating the cause of the blood clots but the pros of taking this vaccine definitely outweigh the risk they might face if they contract the disease.

• Headache
• Fatigue
• Fever
• Muscle aches
• Nausea
• Pain/irritation
• Redness/swelling
• Difficulty breathing
• Rapid heartbeat
• Dizziness
• Rashes
• Swelling of face and throat

• Side effects were common after 7 days within taking the vaccination but were mostly mild to moderate
• Side effects were mostly common in people 18-59 years old of age compared to people 60 years and older
• If rashes occur on the face after a couple days into taking the vaccine, it is normal unless it gets super severe and then you will have to take it to the hospital where you can get urgent care
• Anaphylaxis is also something that occured to a few people who had taken the vaccine which was lead by dizziness, swelling, rash, rapid heartbeat and difficulty breathing

The Johnson & Johnson vaccination was 66.3% effective when going through clinical trials. It had high efficiency in preventing hospitalization and deaths. No one who got Covid-19 after 4 weeks of getting vaccinated with the Johnson & Johnson vaccine had to be hospitalized. It is said to provide good protection from asymptomatic infection.