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again
Posted on: November 9, 2021 at 23:53:47 CT
JG MU
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Most of the COVID-19 vaccines in development do not use human cell lines in their production. For example, Pfizer and Moderna use mRNA technology.
An mRNA vaccine is a new type of synthetic vaccine. As Pfizer explains, mRNA vaccines are made from a DNA template in a lab, rather than the traditional method of being made in cells. The vaccine is then synthetically produced.
The Moderna vaccine is also synthetic. Moderna began by designing a gene sequence on a computer. Damian Garde explains how Chinese scientists, after isolating the virus from patients, posted the genetic sequence for COVID-19 online. Moderna and BioNtech used software to tell them “what chemicals to put together and in what order”.
The COVID-19 vaccine being developed by AstraZeneca in collaboration with Oxford University has generated the most debate.
In November 2020, it was widely claimed on social media, including this Facebook post with over 160,000 views, that the AstraZeneca vaccine contains MRC-5 cells from lung tissue of a male fetus which was aborted in the 1960s.
This specific claim has been fact checked by Associated Press, Full Fact, Politifact, Reuters and Snopes and found to be false. However, the MRC-5 cell line was used in the preclinical testing of the AstraZeneca vaccine.
AstraZeneca did use the HEK 293 cell line to manufacture its vaccine (and Pfizer/BioNTech and Moderna in the design of their vaccines). These cells originate from a fetus which was aborted in the Netherlands in 1973. The fetus was aborted legally at the time for other reasons, and not for the purposes of vaccine research. Alex Kasprak at Snopes has summarised the cell line’s origin story, which began with a Canadian scientist’s research into cancer.
An mRNA vaccine is a new type of synthetic vaccine. As Pfizer explains, mRNA vaccines are made from a DNA template in a lab, rather than the traditional method of being made in cells. The vaccine is then synthetically produced.
The Moderna vaccine is also synthetic. Moderna began by designing a gene sequence on a computer. Damian Garde explains how Chinese scientists, after isolating the virus from patients, posted the genetic sequence for COVID-19 online. Moderna and BioNtech used software to tell them “what chemicals to put together and in what order”.
The COVID-19 vaccine being developed by AstraZeneca in collaboration with Oxford University has generated the most debate.
In November 2020, it was widely claimed on social media, including this Facebook post with over 160,000 views, that the AstraZeneca vaccine contains MRC-5 cells from lung tissue of a male fetus which was aborted in the 1960s.
This specific claim has been fact checked by Associated Press, Full Fact, Politifact, Reuters and Snopes and found to be false. However, the MRC-5 cell line was used in the preclinical testing of the AstraZeneca vaccine.
AstraZeneca did use the HEK 293 cell line to manufacture its vaccine (and Pfizer/BioNTech and Moderna in the design of their vaccines). These cells originate from a fetus which was aborted in the Netherlands in 1973. The fetus was aborted legally at the time for other reasons, and not for the purposes of vaccine research. Alex Kasprak at Snopes has summarised the cell line’s origin story, which began with a Canadian scientist’s research into cancer.
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again - JG A - 11/9 23:53:47