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The American multinational pharmaceutical companies Moderna and Pfizer have announced the good news of their respective coronaviruses, saying that their vaccines have been successful in preventing coronavirus. However, conservation is now the biggest challenge for Pfizer. The UNB news agency quoted NPR.
Moderna claims its corona vaccine is about 95 percent effective in preventing the epidemic. Modern tick tests were performed on about 30,000 corona patients at four-week intervals. The results show that the vaccine is 94.5% effective.
On the other hand, regarding the progress of the new coronavirus vaccine, Pfizer said its vaccine can provide up to 90 percent protection against the new coronavirus. But they will have to wait to get the proper safety information on the vaccine before seeking approval from the US Food and Drug Administration (FDA).
The same technology has been used in the preparation of Moderna and Pfizer vaccines. For both vaccines, similar safety and efficacy data were found in the third or last stage of the trial. In his opinion, both requests can be admissible.
The preservation process for Pfizer’s corona vaccine is relatively complex. It should be kept at a temperature of minus 60 degrees Celsius. The chambers of doctors or general pharmacies generally do not have such cooling devices. Even many advanced healthcare centers and hospitals in the United States do not have complex, super cold storage facilities.
Moderna, on the other hand, says that its vaccines should also be stored in the freezer, but only at minus 20 degrees Celsius, like normal freezers.
“I think this is possible,” said Debra Christensen of the vaccine innovation and supply chain PATH, an international non-profit organization focused on public health. For example, the Ebola vaccine was used successfully in several African countries and required extremely cold temperatures.
“It is possible to distribute the vaccine in this situation, but it will definitely be more expensive and difficult,” added Debra Christensen.
Meanwhile, Pfizer tried to reassure itself about the challenges posed by freezing temperatures. They said they have fixed their own containers to keep the vaccine doses cold. These vaccines can be stored for a few weeks without the need for a specialized dry ice refrigerator. Pfizer’s packaging is unofficially known as the ‘pizza box’.
On the other hand, on the modern vaccine, Christensen said: “It can be distributed very easily. Health workers are used to using these types of vaccines. This is a more normal type of vaccine.
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