Delta variants are in vogue, but could this variant be more deadly?

In the past month or so, due to the rebound of the new crown virus in many regions, the new crown virus variant called the Delta variant has caused many people's concerns

In the second half of 2020, the Beta variant was first discovered in South Africa, when it was named the B.

At first, the concerns caused by the Beta variant were mainly related to immune evasion

Because of these mutations, Beta variants seem to be able to evade the immune response of the immune system against earlier versions of the virus

Some research and analysis after the appearance of the Delta variant found that although the Delta variant is stronger in spread, the Beta variant is more resistant to neutralizing antibodies

▲The neutralizing antibody test showed that compared with the B.

During the period when Beta variants dominated the mainstream, some researchers have noticed that the number of severe COVID-19 cases in the local area has surged

To confirm this, a research team led by Dr.

In another study, Professor Laith Jamal Abu-Raddad, an infectious disease expert in Qatar, analyzed the impact of the Beta variant in Qatar

In the first half of 2021, the Beta variant and another Alpha variant (first discovered in the UK, also known as B.

According to the cohort data published by Professor Abu-Raddad on the preprint server medRxiv, among patients with similar characteristics such as age and gender, compared with the Alpha variant, the possibility of developing a serious disease after being infected with the Beta variant is increased by nearly 25%.

In areas such as South Africa and Qatar that were once dominated by Beta variants, with the rapid spread of Delta variants, Beta variants are gradually decreasing

Note: The original text has been deleted

Reference materials:

[1] Remember Beta? New data reveal variant's deadly toll.

[2] Waasila Jassat et al.

[3] Laith J.

[4] Markus Hoffmann et al.