About 90% of all new infections South AfricaJohannesburg is due to the Omicron strain, but mortality and even hospitalization do not appear to have increased significantly, local media reports.
Can be fatally replaced delta
Therefore, some experts say that if Omicron turns out to be less lethal but more contagious than the Delta mutant, the new strain will become the global predominant and in fact a “disguise blessing”. I am cautiously optimistic that it may be.
“The subspecies of Omicron are less pathogenic but more contagious, and if Omicron could replace Delta, this would be very positive news,” said virologist Marc Vann Ranst. Stated.
The first Delta variant detected in India now accounts for over 90% of all new Covid cases in the world. All new infections reported in India are due to the Delta strain, which has higher hospitalization and mortality rates than its predecessor, Alpha or Beta.
Delta strains were the main reason for breakthrough infections in the second wave of Covid-19 in India. It infected hundreds of thousands of people and killed tens of thousands within a few months.
However, the World Health Organization (WHO) states that data on the infectivity and symptom severity of Omicron variants are still inadequate.
Hundreds of South African people infected with the Omicron variant have reported nausea, headaches, malaise, and high pulse rates, but no one seems to suffer from loss of taste or smell. Delta strain.
A variant of Omicron was first reported on November 24th from South Africa, where infections are rampant. In less than a week, Australia, Belgium, Botswana, Canada, Denmark, Germany, Hong Kong, Israel, the Netherlands, Portugal, Scotland, South Africa, and the United Kingdom, despite rapid travel restrictions.
The Omicron strain has more than 30 mutations, about twice as much as the Delta mutant. Mutations can affect the infectivity, severity, and response of a vaccine.
Pharmaceutical companies have already begun to consider ways to fine-tune vaccines to adopt new variants.