While the peak of contamination seems to have been reached within the framework of this new wave, this subvariant of Omicron is expanding its presence.

In our country, and if we are to believe the latest figures from Public Health France, the number of Covid cases is stabilizing. However, in its latest report published on October 20, the number of patients is still “raised”and two increases are observed, namely increases in intensive care units (552, +8%) and deaths (390, +23%).

But there is another progression to note, and that is the presence of Omicron BQ.1.1 subvariant.

BQ 1.1: An impact that has not yet been assessed

Indeed, if the BA.5 subgenus still accounts for the vast majority of cases of infection, the frequency of BQ 1.1 increased between mid-September and mid-October from 2% to 16%. But Public Health France is making progress:

However, it is still too early to assess the possible impact of BQ.1.1 on the dynamics of the epidemic.

That said, in other nearby countries such as Italy, the Netherlands, the United Kingdom or more distant ones such as the United States, the trend seems identical.

What associated symptoms?

The doctors have certainly been able to observe diarrhoea, vomiting or simple abdominal pain. But the involvement of Covid is not confirmed.

If it should ever be in the future, we have to fear an epidemic that is difficult to control if the patients cannot be linked to the coronavirus (less tests done).

The question of BQ resistance 1.1

Experts believe it would be more resilient. It would further evade the immune system and bypass the effect of antibodies due to the presence of mutations in a subregion of its protein peak. As for the severity of the infection, there is currently no indication that it is major.

What development can be expected? It is still too early to assess that. According to Antony Fauci, medical adviser to the President of the United States, adds that the development will depend “previous vaccinations, previous exposures and the region of the country you are in”.

In any case, it is a fact, the Sars-Cov-2 virus continues to mutate, and a lot. But among the hundreds of sub-varieties, only a few are worth keeping a close eye on.