Latinx Flint NEWS

The Johnson and Johnson Jenssen Vaccine

By Alondra Rosas Ornelas | Latinx Flint Media

Image of a vaccine.

This news article is also available in: Español (Spanish) English

FLINT, MI- The Johnson and Johnson Jenssen vaccine is one of the three approved Covid-19 vaccines in the United States. Unlike the Pfizer and Moderna vaccines, J&J only requires one dose instead of two. The Johnson and Johnson Jenssen vaccine has a 66.3 percent effectiveness globally and 72 percent in the United states compared to the 94-95 percent effectiveness found in Pfizer and Moderna (CDC). However, according to the CDC, the vaccine had high efficacy at preventing hospitalizations and deaths in the clinical trials and no one who got Covid-19 at least 4 weeks after receiving the vaccine had to be hospitalized. People have the most protection after 2 weeks of receiving the dose. 

On Tuesday, April 13th, 2021, the CDC recommended that the J&J/Jenssen vaccine be put on a pause. According to the CDC, as of April 12th, 6.8 million doses of the vaccine were administered. Six cases of a rare and severe blood clot clot called cerebral venous sinus thrombosis were reported in the U.S. All cases occurred in women aged 18-48, and symptoms occurred 6-13 days after vaccination. The CDC has now resumed the use of the vaccine. The CDC states that the potential benefits of the vaccine outweighs the known potential risks. They also add that women younger than 50 years old should be aware of the risk and that there are other vaccine options in which this particular risk has not been seen. 

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The J&J/Janssen vaccine trials included asymptomatic PCR testing and antibody testings. A person is considered asymptomatic when a person is infected by the virus that causes Covid-19 but does not get sick (CDC). The trials showed evidence to suggest that the vaccine might provide protection against asymptomatic infection. 

The difference in percentages for efficacy between the three vaccines is due to the difference in clinical trials. According to Dr. Cassandra Pierre, an infectious disease specialist and acting hospital epidemiologist at Boston Medical Center, we cannot compare the vaccines head on because the Pfizer and Moderna vaccine did not undergo rigorous clinical trials where variants are widespread, such as Brazil and South Africa. The J&J/Jenssen vaccine performed well against the variants because it was tested in both of those countries when the variants were present (NPR). 

Possible side effects for the J&J/Jenssen vaccine include tiredness, headaches, muscle pain, chills, fever nausea. Pain, redness, and swelling in the arm where you get the shot are also possible. The side effects usually start within a day or two and last for only a few days. 

The best vaccine a person can get is the first vaccine that is available to them. Please visit the following links to get more information about the J&J/Jenssen vaccine and where you can get vaccinated.


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