PETALING JAYA: A neighborhood examine of these recovered from Covid-19 has revealed that their antibody ranges had decreased sharply three months after they’ve recovered.
Well being director-general Datuk Dr Noor Hisham Abdullah mentioned that the antibody response within the examine amongst these from the Sungai Lui Covid-19 cluster was solely 20%.
“By proper, these contaminated ought to have an antibody response of 80-90%. If it will increase, then solely can we have now herd immunity. However the antibody response declined, ” he mentioned throughout a press convention on Tuesday (July 14).
He mentioned that different research from world wide had proven related outcomes, bringing into query the effectiveness of a possible vaccine for the virus.
He mentioned the research indicated that somebody who had been contaminated with the virus could possibly be re-infected once more.
“If we give vaccines, wouldn’t it be capable to stimulate an antibody response? We are actually within the third part of vaccine analysis, which is taking a look at its effectiveness. Can it stimulate a everlasting response and never only a short-term response?
“If the antibodies will not be everlasting, we received’t have herd immunity. These are the problems. Day by day, we’re studying one thing new from Covid-19, ” he mentioned.
Dr Noor Hisham mentioned that they’re in negotiations with a number of companies to participate within the third part of scientific trials, which might contain testing on people.
Researchers everywhere in the world try to develop a vaccine towards Covid-19, with the earliest timeframe for this being subsequent yr.