Johnson & Johnson/Janssen COVID-19 Vaccine || Who should NOT get vaccinated? || What are the side effects of getting vaccinated?



General Information


Name  :  JNJ-78436735

Manufacturer  :  Janssen Pharmaceuticals Companies of Johnson & Johnson

Type of Vaccine  :  Viral Vector

Number of Shots  :  1 shot

How Given  :  Shot in the muscle of the upper arm

Does NOT Contain  :  Eggs, preservatives, latex, metals



How Well the Vaccine Works?


The Johnson & Johnson/Janssen COVID-19 Vaccine is turned to show 66.3% efficacy (effective) in clinical trials. It succeeded in preventing laboratory-confirmed COVID-19 infection in people who got vaccinated. 


After getting vaccinated people had the most protection till 2 weeks of vaccination.

The vaccine had high efficacy in preventing death and hospitalization in people who get sick. According to data, no one had to be hospitalized after the 4 weeks of receiving the Johnson & Johnson/Janssen COVID-19 Vaccine.



Who should NOT get vaccinated?


  1. People with severe allergic reactions (anaphylaxis) or an immediate allergic reaction should not get the J&J/Janssen COVID-19 Vaccine due to the presence of polysorbate in it.
  2. A severe allergic reaction needs to be treated with epinephrine or EpiPen or with medical care. 
  3. Immediate allergic reaction - A reaction within 4 hours of exposure, including symptoms such as hives, swelling, or wheezing (respiratory distress).


What are the side effects of getting vaccinated?


In the arm where you got the shot:

  • Pain
  • Redness
  • Swelling

Throughout the rest of your body:

  • Tiredness
  • Headache
  • Muscle pain
  • Chills
  • Fever
  • Nausea

These side effects happen within a day or two of getting the vaccine. They are normal signs that your body is building protection and should go away within a few days.



Fainting After Vaccination


Fainting (syncope) and other events that may be related to anxiety-like rapid breathing, low blood pressure, numbness, or tingling can happen after getting any vaccine. Although uncommon, these events are not unexpected, and they are generally not serious. It is noticed about 8 fainting events for every 100,000 doses of the J&J/Janssen COVID-19 Vaccine given. 



What is the connection between the Janssen/Johnson & Johnson COVID-19 vaccine and Guillain-Barre syndrome?


Guillain-Barre syndrome - This is a rare disorder in which your body’s immune system attacks your nerves. 

Some people who received the Janssen/Johnson & Johnson COVID-19 vaccine have developed Guillain-Barre syndrome. The chances of this happening are very low.

Symptoms can be seen within 42 days of vaccination. Seek immediate medical care after getting the Janssen/Johnson & Johnson COVID-19 vaccine if you have:

  1. Weakness or tingling sensations, especially in the legs or arms, that worsens and spreads to other body parts
  2. Difficulty walking
  3. Difficulty with facial movements, including speaking, chewing, or swallowing
  4. Double vision or inability to move eyes
  5. Difficulty with bladder control or bowel function



What are the symptoms of a blood clotting reaction to the Janssen/Johnson & Johnson COVID-19 vaccine?


Use of the Janssen/Johnson & Johnson COVID-19 vaccine might increase the risk of a rare and serious blood clotting disorder. Nearly all of those affected have been women ages 18 to 49, with the disorder happening at a rate of 7 for every 1 million vaccinated women in this age group. For women aged 50 and older and men of all ages, the disorder is even rarer.


Serious side effects of the Janssen/Johnson & Johnson COVID-19 vaccine can occur within three weeks of vaccination and require emergency care. Possible symptoms include:


  1. Shortness of breath
  2. Persistent stomach pain
  3. Severe or persistent headaches or blurred vision
  4. Chest pain
  5. Leg swelling
  6. Easy bruising or tiny red spots on the skin beyond the injection site

Mild to moderate headaches and muscle aches are common in the first three days after vaccination and don't require emergency care.


Ethical Principles


ACIP identified four ethical principles to guide their decision-making process when supply was limited:


  1. Maximize benefits and minimize harms — Respect and care for people using the best available data to promote public health and minimize death and severe illness.
  2. Mitigate health inequities — Reduce health disparities in the burden of COVID-19 disease and death, and make sure everyone has the opportunity to be as healthy as possible.
  3. Promote justice — Treat affected groups, populations, and communities fairly. Remove unfair, unjust, and avoidable barriers to COVID-19 vaccination.
  4. Promote transparency — Make a decision that is clear, understandable, and open for review. Allow and seek public participation in the creation and review of the decision processes.



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