Video / NZ HeraldA new Omicron variant detected in New Zealand may increase the risk of Covid-19 reinfection, experts say. It now made up around 20 per cent of cases in South Africa. "The fact that it has emerged in South Africa and is spreading there suggests that it does have some advantage over BA.2, and some ability to evade existing immunity. "Because there's such a high level of immunity in South Africa already - it obviously has some competitive advantage." Experts said South Africa had a very different immunity profile to New Zealand, because New Zealand had a much higher rate of vaccination.

Source: New Zealand Herald May 01, 2022 06:10 UTC