The omicron variant, which is the recently active variant of the Covid-19 virus and has a high level of contagiousness, currently accounts for half of the Covid infections in the world. The most common Omicron sub-variant is known as BA1. However, in recent periods, especially in Asian and European countries, there has been an increase in cases caused by BA2, which is also a sub-variant of omicron.
After the Omicron variant of Covid-19, also called BA1, the BA2 variant has begun to become dominant in distant countries such as Denmark and India. It is known that it has a different structure compared to variants such as Alpha, Beta, Gamma and Delta. According to the data we have at the moment, the BA2 variant multiplies faster than other sub-variants and seems to be more contagious. In contrast, data on the more severe course of the disease caused by the BA2 variant are still insufficient. Symptoms include upper respiratory tract complaints such as nasal congestion, sore throat.
There are 20 mutation differences between Omicron and Deca
Although BA1 and Dec 2 are similar, there are 20 different mutation differences between them. The BA2 variant, which was first detected in the Philippines, has been taken to the status of a variant under observation in the UK. The US Center for Disease Control and Prevention has found that 4 percent of those infected with Covid-19 are currently BA2. According to a study conducted in Japan, it has been shown that it is both transmitted faster and can cause serious illness.
Runny nose and stuffiness are at the forefront of the symptoms
Compared to previous variants, it is observed that nasal discharge is the dominant symptom more in cases experienced in recent days. Just like with an upper respiratory tract infection, a sore throat is also experienced, but symptoms such as nasal congestion, runny nose are detected in the foreground. In general, there is no expectation that the disease is more severe. When we look at the cases detected recently, it is clearly seen that there is a variant that is transmitted faster.
Thanks to vaccines, the disease can still be mild
As is known, Omicron and its sub-variants can also affect vaccinated people, but it is known that Covid vaccines still prevent severe transmission of the disease. Like all Covid-19 variants, Omicron and BA2 continue to pose a risk to individuals of advanced age and people with chronic diseases. It is especially important that these groups are also vaccinated. As a result, caution should be exercised, Covid vaccinations should not be neglected, social distance and hygiene rules should be followed, regular antibody tests should be performed, and when symptoms are experienced, the possibility of Covid-19 should definitely be excluded by PCR testing.