As the Covid-19 pandemic continues to spread, the subject of vaccinations has become the focus of just about everybody.
Vaccines have become the most effective method we have of fighting disease-causing microbes. Although it can take up to 10 years and hundreds of millions of dollars to develop a vaccine, they are still the most cost-effective treatment for an infectious disease with the highest success rates.
There are more than 2,600 different types of vaccines that are currently being developed around the world. This article will look at a few of those that have garnered a great deal of attention recently.
There are now more than 140 different vaccines for Covid-19 in the works, all at varying stages of development. Three of the most promising are manufactured by Pfizer, Moderna, and AstraZeneca.
AstraZeneca has reported its vaccine to be 90 percent effective. The two other drugmakers, Pfizer and Moderna, have reported that their vaccines were 95 percent effective in clinical trials.
The three companies plan to manufacture millions of doses of their vaccines. The first batch of the Pfizer and Moderna vaccines should become available within the coming weeks. The vaccines need FDA approval before being distributed.
Pfizer and Moderna are expected to make 40 million doses by the end of 2020, which will be enough to inoculate 20 million people. AstraZeneca is expected to manufacture four million doses by the end of the year and another 40 million in the first few months of 2021.
The Middle East Respiratory Syndrome Coronavirus is similar to the one that causes Covid-19. It also is transmitted through droplets in the air from infected people. Symptoms can mirror the common cold or be more severe, such as fever, cough, and shortness of breath. It can lead to pneumonia. The virus is deadly, with a fatality rate of 30 percent.
While there have been only two cases in the United States, major outbreaks have been reported in Saudi Arabia and South Korea.
Two vaccines have been developed for this virus. In clinical trials, one has generated an immune response, while results for the other have not yet been released.
This is a virus that targets and damages the immune system. It is spread through contact with an infected person’s bodily fluids.
Because it affects the immune system itself, developing a vaccine for HIV has been difficult. Clinical trials for such vaccines have been taking place since 1987. Currently, 41organizations are working on vaccines.
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