Due to the global outbreak that happened over a year ago, people were forced to go in lockdown. People had to take initiative to help take down the virus that’s affecting us all. With almost a year, people were able to create vaccines to prevent the Covid virus. With people rushing to get the vaccines, This brings up the question how effective are these vaccines really?
There are three vaccines that are authorized by the FDA. The Pfizer-BioNTech, Moderna, and Johnson&Johnson. The first vaccine, The Pfizer-BioNTech, was the first vaccine that was authorized by the FDA. The company reported positive clinical trial data, which also stated that the vaccine was up to 95% more effective than a placebo at preventing symptomatic disease. The second vaccine, the Moderna, was the second vaccine that was authorized. This vaccine is also highly effective at preventing symptomatic disease. With evidence that it is 94.1% effective at preventing symptomatic disease. It requires two doses that are 4 weeks apart. The third vaccine, Johnson&Johnson is a single shot vaccine that has a 72% overall efficacy and 86% efficacy against severe disease in the U.S. However, unlike the other two vaccines this is a carrier vaccine as scientists engineered a harmless adenovirus. The cells inside your body produce antibodies and memory cells to protect against the actual Covid-19 virus.
These vaccines prove to be successful due to the evidence of its effectiveness. However, these vaccines have some mild side effects. Side effects of these vaccines include chills, headaches, pain, tiredness, swelling on injection site, and on rare cases, shortness of breath, myalgia, and anaphylaxis. These vaccines are also less effective on people over the age of 65. These vaccines are also only available to ages 18 and older, excluding the Pfizer vaccine as they are available at ages 16 and up. These vaccines are still unpredictable as humans may not know the long term side effects that these vaccines may cause.
The vaccines are proven to be highly effective due to high percentage of efficacy of these 3 vaccines. Two vaccines are also in development, Oxford-AstraZeneca vaccine and the Novavax vaccine. How will they hold up against the 3 current vaccines?