Why storage and distribution of Covid-19 vaccines will be next big challenge? /corona vaccine update
Channel: Defence Nd Politics
Date: 2020-11-19

#coronavaccine #covid-19vaccine #covidvaccine
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Since different Covid-19 vaccines like that of Moderna, Oxford, Pfizer require different temperatures, cold chain facilities are a critical aspect before they are eventually administered to the people.
We may have a Covid-19 vaccine by this year itself, with about eight candidates nearing the end of late-stage clinical trials, but getting the shots delivered safely to different countries and then finally to hospitals and pharmacies is set to be the next challenge.
Since different Covid-19 vaccines require different temperatures and different handling procedures, cold chain facilities, including equipment and procedures used in transport and storage, are a critical aspect before they are eventually administered to the masses. For example, some of the vaccines undergoing phase III trials now must be stored at temperatures as cold as minus 94 degrees Celsius. So, what is a cold chain? What are the issues in Covid-19 distribution?
According to the World Health Organisation (WHO), ‘cold chain’ is a system of storing and transporting vaccines at recommended temperatures from the point of manufacture to the point of use. Vaccine candidates from Pfizer and Moderna, which has been developed using messenger RNA technology, requires the shots be stored at subzero temperatures. Pfizer’s vaccine candidates, BN1162b2 and BNT162b2, require a storage temperature of minus 94 degrees Fahrenheit. Once thawed, the vials can be refrigerated for just two days. Johnson & Johnson’s JNJ-78436735 single-shot vaccine is expected to be shipped commercially at standard refrigeration, a spokesman said. AstraZeneca-Oxford’s ChAdOx1 vaccine (also christened AZD1222 and Covishield in India), which will be manufactured in India by Serum Institute, will have to be refrigerated at 2-8 degrees Celsius. Russia’s Sputnik V vaccine stipulates storage at a temperature not higher than –18 degrees Celsius.
India has more than 28,000 cold chain points of which 750 are located at the district level and above. The rest are located below the district level, according to government data. we might be requiring more than 16,000 (cold chain storages), and therefore, we need to augment.
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