Epidemiologist Tamriko Kvartskhava wrote on safety and effectiveness of AstraZeneca COVID-19 vaccine on her social network page.
According to Tamriko Kvartskhava, AstraZeneca (AZ) belongs to the group of viral vectors. Due to the technology, it does not contain the virus that causes COVID infection, so a person will not be infected with coronavirus after vaccination.
She notes, that the clinical efficacy of the AZ 2-dose is 63% and the vaccine protects against severe coronavirus with 85.4% (calculated after 28 days in the total cohort). The efficiency is slightly less effective in elderlies. On top of that, increasing the interval between the two doses up to 8-12 weeks showed greater efficacy.
“We must remember that neither air nor water is 100% safe”, - the epidemiologist reports.
This vaccine is also characterized by 2 possible adverse effects, mostly mild in nature: (1) local effects with hypersensitivity to the injection site; (2) Mild or moderate systemic reactions (fatigue, headache/muscle aches, fever). All symptoms go away in a few days.
The doctor notes, that the vaccine is recommended for adults above 18.
As for contraindications, this vaccine is not recommended in 2 cases:
(1) if you had a severe allergic reaction to the first dose;
(2) If you have had treatment with corticosteroids in the past (epinephrine, prednisolone, etc.) due to a severe allergic reaction.
“In this case, I advise you to consult an allergist to find out if you can have a reaction to any of the components (active ingredient) of this vaccine”, Tamriko Kvartskhava said.
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