More "Common" Side-Effects and Details for J & J Vaccine

 

Here is some side-effect news.  The CDC's old list of comon side effects included injection-site pain and swelling, plus fever, chills, tiredness, and headache.  They have just labeled three additional side effects as common.  They are muscle aches, nausea, and injection site redness.  

The latter has been dubbed "COVID arm" and has been in the news for a while now.  The odd thing about it is that it doesn't appear until 5-9 days after the first shot.  

Since the Johnson and Johnson vaccine is now out in the wild, I looked up it's side effect profile.  All I was able to find was results from the Phase 1 and 2a trials.  The summary says:

After the administration of the first vaccine dose in 805 participants in cohorts 1 and 3 and after the second dose in cohort 1, the most frequent solicited adverse events were fatigue, headache, myalgia, and injection-site pain. The most frequent systemic adverse event was fever. Systemic adverse events were less common in cohort 3 than in cohort 1 and in those who received the low vaccine dose than in those who received the high dose. 

The difference between cohorts 1 & 2 and cohort 3 was that the latter contained people 65 and older.  These side effects look pretty similar to the common ones for Pfizer and Moderna.  If you are interested in the details you can find a graphic here. 

Image:  "Syringe and Vaccine" by NIAID is licensed under CC BY 2.0 

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