Antibody production against corona virus takes at least 3 months

According to two separate reports published in the journal Science Immunology , people infected with the new type of corona virus develop antibodies that target the virus for at least three months. Two separate studies involving about 750 patients focused on immunoglobulin G (IgG) antibodies, which occur the longest after the infection begins.

THE PROTECTIVE EFFECT OF ANTIBODIES AGAINST RE-INFECTION IS NOT CLEAR

Researchers at the University of Toronto, in Canada, found that the IgG antibody, which targets the Virgo protein that the corona virus uses to cling to cells, is produced for at least 100 days. While the protective effect of antibodies against re-infection is not clear, Jen gommerman, a co-author of the study, noted that her team found levels of neutralizing antibodies that neutralize the virus.

Gommerman’s team also found that antibodies in saliva were associated with antibodies in the blood, but testified that at this point saliva tests were not sensitive enough to replace blood tests.

HARVARD STUDY: ANTIBODY LEVELS AIMED AT NEUTRALIZING VIRUS RISE FOR 3 MONTHS

Another Harvard Medical School study reported similar findings. The researchers measured antibodies in the blood of 343 patients up to 122 days after symptom onset. He then compared antibody levels to 548 people sampled before the pandemic.

The study authors found that IgG increased in patients with protective neutralizing antibodies for 3 months, while immunoglobulin A and M (IGA and IgM) antibodies were relatively short-lived. Both types of antibodies were noted to have decreased low levels after about 2.5 months.

“Knowing the duration of the IGA and IgM immune response will help scientists obtain more accurate data about the spread of the new type of corona virus, ” said Jason Harris. There are many cases in the community that we cannot detect through PCR testing during acute infection,” he said.

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