World Health Organization: COVID-19 vaccines for Omicron may be necessary

By Zoila Palma Gonzalez: The World Health Organization (WHO) says that there is a need to assess whether variant-updated COVID-19 vaccines, especially to Omicron, would improve vaccine performance.

 Health experts around the world are closely monitoring Omicron and new mutations of the virus.

“Current vaccines continue to perform well in preventing severe disease and death due to Omicron, particularly with the use of a booster dose(s). However, protection against infection and symptomatic illness due to the Omicron variant is lower than other variants and declines rapidly, even after a third (booster) dose,” WHO said in a statement.

The new sub-variant of Omicron seems to be spreading rapidly across the United States and experts are looking closely at the BA.5 COVID subvariant and BA.2, also known as stealth Omicron.

Meanwhile, a group of independent health experts says that  “an Omicron-specific monovalent vaccine may elicit greater breadth in the immune response than” current vaccines.

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