![]() Symptoms to look out for include:Īfter getting the COVID-19 vaccine, you will likely be monitored for at least 15 minutes afterwards to make sure you don’t develop any serious side effects. Immediate allergic reactions typically occur within 4 hours of receiving the vaccine and can include symptoms like:Īnaphylaxis typically happens shortly after receiving the vaccine. These side effects include immediate allergic reactions and a severe type of allergic reaction called anaphylaxis. Serious short-term side effectsĪlthough rare, some people have experienced more serious short-term side effects after getting a COVID-19 vaccine. Side effects that are felt throughout your body, such as fatigue and fever, are more common after getting the second dose. While these side effects can be unpleasant, they’re typically mild or moderate and go away after a few days. ![]() It means that your body is in the process of generating an immune response. Although it can be unpleasant, it’s actually a good sign. It’s pretty normal to feel mild symptoms like those described above after getting a vaccine. ![]() pain, redness, or swelling at the injection site.The side effects typically start within a day or two of getting the vaccine and may include: The short-term side effects of the authorized COVID-19 vaccines are similar. What’s known about the short-term effects of the vaccine? Additionally, vaccine safety continues to be monitored after authorization or approval. Although development is sped up, accelerated timelines don’t compromise scientific standards or integrity.Ĭompanies must still present solid data from human clinical trials to the FDA that shows a vaccine is both safe and effective. What hasn’t changed is the fact that all COVID-19 vaccines still need to undergo rigorous testing protocols aimed at determining their effectiveness and safety. However, if the vaccine is found to be safe and effective, a ready supply of doses is on hand, as was the case for the current vaccines. This is a large financial risk for these companies, as data could show that their vaccine isn’t effective or safe, leading them to scrap the vaccine altogether. This can take a lot of time.ĭuring the pandemic, some of these timelines were accelerated in order to shorten development time.Īdditionally, companies scaled up the manufacturing of their vaccines while they performed clinical trials. For example, a phase 2 clinical trial would only proceed after a phase 1 trial had been completed. Normally, the stages of vaccine development and testing occur one after the other. This funding, which came from both public and private sources, allowed companies to effectively conduct the necessary vaccine research and clinical trials. As these trials progress, the number of participants grows and so do the costs.Įarly in the pandemic, funding was poured into the development of COVID-19 vaccines. Three different phases of clinical trials must show safety and effectiveness before a vaccine can be authorized or approved. When a vaccine enters human clinical trials, these costs begin to expand rapidly. One of the main reasons for this is that it requires an abundance of testing for both effectiveness and safety. This existing research gave scientists an important head start for developing vaccines for SARS-CoV-2. In fact, prior to the pandemic, scientists had been studying this method as a way to make vaccines for other viruses. This includes mRNA vaccines like those made by Pfizer-BioNTech and Moderna. Scientists have been studying new ways to make vaccines for many years now. ![]() However, it’s actually been around for some time. The technology that went into the COVID-19 vaccine may seem new. This high level of cooperation helped to better distribute valuable knowledge throughout the scientific and medical community about the virus itself, how it causes illness, and potential vaccination and treatment methods. Along the way, they shared important research results with other scientists. Scientific collaborationĪs soon as the new coronavirus was identified and its genetic material was sequenced, scientists around the world began studying it in earnest. ![]() How were these able to be developed so quickly? Below, we’ll take a look at how this was achieved. At least 52 of these have entered clinical trials in humans. In fact, according to the World Health Organization (WHO), there are over 200 potential COVID-19 vaccines in development as of December 2020. However, COVID-19 vaccines have been developed in a short amount of time. Vaccine development typically takes many years. How were the COVID-19 vaccines able to be developed so fast? ![]()
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