No evidence BA.3.2 COVID-19 variant causes more severe illness
VOV.VN - The BA.3.2 COVID-19 variant, also referred to as “Cicada”, has not been shown to cause more severe illness than previous variants, according to health experts.
Monitoring and assessment of the variant are ongoing, with further guidance to be issued as appropriate.
In Hanoi, 17 Covid-19 cases were recorded across 12 wards and communes from March 20 to 27, bringing the total since the start of the year to 29 cases in 22 wards and communes. No deaths have been reported. Health authorities have advised the public not to panic but also not to be complacent.
According to Assoc. Prof. Dr. Do Van Dung, senior lecturer at the University of Medicine and Pharmacy at Ho Chi Minh City, BA.3.2 is a sub-variant of the Omicron lineage, genetically distinct from the JN.1 lineage that previously dominated. It carries multiple mutations in antibody target regions, enabling it to evade immunity from earlier-generation vaccines and prior infections.
However, these changes also make the virus less efficient at binding to and entering cells, resulting in a moderate transmission rate and preventing it from becoming the dominant strain so far.
To date, there is no evidence that BA.3.2 causes more severe disease. Experts say its emergence and cyclical spread suggest Covid-19 is becoming endemic, with case increases often linked to seasonal changes or periods of increased travel and interaction. Overall risk has declined compared to the pandemic phase, though infections may recur in waves.
To reduce transmission, the public is advised to maintain personal protective measures, including regular handwashing, proper respiratory hygiene and mask use where appropriate, especially in healthcare settings and crowded spaces. High-risk groups should monitor their health, stay up to date with vaccinations and limit close contact with symptomatic individuals.
Experts also warn against complacency after previous infection, self-medicating with antiviral drugs or antibiotics without prescription, and going to work or attending events while symptomatic, as this may increase transmission risks.
Ministry of Health orders close monitoring of COVID-19 variant in US
VOV.VN - The Ministry of Health has ordered close monitoring of the SARS-CoV-2 BA.3.2 variant reported in the US and said current assessments place its public health risk at a low level.
