Antibody production slower with BA.4 and BA.5 infections, particularly for those who caught the virus pre\u002DOmicron
“What we are seeing now, or at least maybe the first signs, is not completely new variants emerging, but current variants are starting to create lineages of themselves,” Tulio de Oliveira, director of the KwaZulu-Natal Research and Innovation Sequencing Platform , told the
KRISP, part of a virus-research network across South Africa, was able to identify the Beta and Omicron variants because of the knowledge gained from the continent’s fight against HIV.how the virus is evolving as global immunity increases. It appears that in unvaccinated people, the new subvariants evade a person’s natural immunity produced from an infection with the original Omicron variant, BA.1. The two new variants have sprung from BA.1.
About 90 per cent of the South African population has some immunity, most from a previous infection. But as this immunity begins to wane at around three months — and with mask-wearing down and travelling up — the number of reinfections is increasing. The country’sThis advertisement has not loaded yet, but your article continues below.