{"id":6781,"date":"2021-11-09T14:44:45","date_gmt":"2021-11-09T05:44:45","guid":{"rendered":"https:\/\/www.emukk.com\/WP\/?p=6781"},"modified":"2021-11-09T15:13:23","modified_gmt":"2021-11-09T06:13:23","slug":"antibody-response-induced-by-a-3rd-boost-sars-cov-2-vaccination-after-8-months-from-the-2nd-vaccination","status":"publish","type":"post","link":"https:\/\/www.emukk.com\/WP\/en\/antibody-response-induced-by-a-3rd-boost-sars-cov-2-vaccination-after-8-months-from-the-2nd-vaccination\/","title":{"rendered":"Antibody response induced by a 3rd boost SARS-CoV-2 vaccination: after 8 months from the 2nd vaccination"},"content":{"rendered":"

A group from The Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, Yunnan, China, etc. has reported on antibody response induced by a third boost dose of inactivated SARS-CoV-2 vaccine.
\nhttps:\/\/pubmed.ncbi.nlm.nih.gov\/34666622\/<\/a><\/p>\n

In this study, 53 volunteers, who joined in the development and production of inactivated COVID-19 vaccines (it is not sure what company developed the relevant ones, though), received two doses (at 0 and 28 days) of the vaccines in 2020, and they received a 3rd dose 8 months after the 2nd dose recently. <\/p>\n

At 0 days, 5 days, 7 days, and 14 days after the 3rd dose, blood was collected from 6 volunteers for the evaluation. It was found that both the anti-S antibody and neutralizing antibody against the original Wuhan strain gradually increased after 5 days, and the positive conversion rate of antibodies reached 100% at 14 days. Interestingly, the memory of IFN-\u03b3-T cells against S, N, M, O antigens of SARS-CoV-2 can be quickly awakened after the 3rd dose. <\/p>\n

These results indicate that although the neutralizing antibodies gradually decrease after two doses of inactivated vaccines, the antibody response could be awakened quickly by the 3rd vaccination and the T cell immune memory is still active even after 8 months from the 2nd vaccination.<\/p>\n","protected":false},"excerpt":{"rendered":"

A group from The Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical Co<\/p><\/div>\n

\u7d9a\u304d\u3092\u8aad\u3080<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-6781","post","type-post","status-publish","format-standard","hentry","category-technology-en"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t