90% of Vaccinated People Developed Antibodies Against Coronavirus Variants

Above, shoppers at Asakusa's Nakamise Dori during normal times. Photo by Armand Vaquer.

The following article originates from Japan, but it does apply here for those of us who have been vaccinated against COVID-19 with the Pfizer vaccine.

I have been fortunate to have been vaccinated with the Pfizer vaccine back in February.

The Japan News (Yomiuri Shimbun) reported: 

About 90% of Japanese people who received two doses of Pfizer Inc.’s vaccine against COVID-19 developed antibodies that could prevent the onset of the disease from novel coronavirus variants as well as the original virus, a study by Yokohama City University has found.

As coronavirus variants are spreading in Japan, the research highlights the importance of promoting the ongoing vaccination program.

In the study, blood samples were collected from 105 doctors and nurses, aged 24 to 62, who were vaccinated with the Pfizer vaccine in March and April. The vaccine is normally given in two doses on two separate occasions. The samples were taken before and after the inoculations.

Examination of the antibodies contained in blood a week after the second inoculation showed that 99% of the participants had developed antibodies that are likely to have a sufficient preventive effect against the original form of the novel coronavirus. High efficacy was confirmed for variants as well, with 94% of the participants found to have developed antibodies effective against the British variant that is spreading in the nation, 90% for the South African variant and 97% for the Indian variant.

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