Pfizer overcomes the problem of keeping Corona vaccine below -70 degrees by producing cold chains

Cold chains are the method used by Pfizer to overcome the problem of storing its new vaccine at a temperature that cannot be tolerated by ordinary refrigerators, as scientists have addressed the problem that the vaccine must maintain its effectiveness at 94 degrees. Fahrenheit or 70 degrees Celsius, and in this report we learn the method the company has followed to overcome this question.

Cold chains keep Pfizer vaccine

According to the Business Insider website, Pfizer has an area of ​​land the size of a football field in Kalamazoo, Michigan as a vaccine shipping hub, complete with 350 large refrigerators, the Wall Street Journal reported.

This is only the first part of a vaccine’s “cold chain,” and it is the critical multi-part pipeline that will keep injections fresh and ready to use.

Many places in the U.S. indicate that they are not fully prepared for the success of this vaccine series. Some hospitals are rushing to purchase extremely cold freezers to keep vaccines at an adequate temperature.

Here’s what should go down the cold chain to finally get the coronavirus vaccine.

Many vaccines need to be kept cool for them to work properly

And vaccines need dry ice. If doctors or healthcare professionals mistakenly heat the vaccine more than necessary before using it on a person, this could damage the vaccine.

Not all vaccines thrive at the same temperatures Many of the more common vaccines, including polio, measles, and tetanus vaccines, all work well in the refrigerator, at temperatures between 35-46 degrees Fahrenheit (2-8 degrees Celsius).

But a company Pfizer He says his new coronavirus vaccine must be kept at -94 degrees Fahrenheit (-70 degrees Celsius) in order to protect the vaccine’s effectiveness.

The vaccine probably would have worked well at temperatures higher than that, but the scientists were in a hurry to produce the vaccine that they didn’t know for sure.

And it must be shipped on dry ice, as the company has developed a special dry ice bag that can keep its vaccines safe for 10 days, but this may not be long enough, especially as the multi-vaccination course takes two vaccinations, three weeks apart.

The two-dose vaccination course, which the company said is more than 90 percent effective in preventing corona in the later stages of human studies earlier this week, may gain emergency approval from Food and Drug. US Administration within a few weeks, but the vaccine must be maintained. So cold that the company is ready to ship it in dry ice bags (designed to stay cold for 10 days) and equipped with a tracker GPS Which keeps track of its temperature.