The World Health Organization (WHO), in its weekly epidemiological report, announced on Dec. 8 that 57 nations have reported COVID-19 Omicron variant cases thus far.
Although it isn’t clear whether the Omicron variant can lead to more severe COVID-19 symptoms, the U.N. health organization stated on Dec. 8 that more data is needed to assess the severity of the disease or whether its mutations can breach vaccines or natural immunity.
“Even if the severity is equal or potentially even lower than for Delta variant, it is expected that hospitalizations will increase if more people become infected and that there will be a time lag between an increase in the incidence of cases and an increase in the incidence of deaths,” the report reads.
“Preliminary analysis suggests that the mutations present in the Omicron variant may reduce the neutralizing activity of antibodies resulting in reduced protection from natural immunity,” the report reads, noting that it isn’t yet clear whether “mutations present on the Omicron variant may result in reduced protection from vaccine-derived immunity and data on vaccine effectiveness, including the use of additional vaccination doses.”
It isn’t clear whether any deaths have been associated with the Omicron variant anywhere in the world. The strain has been reported in at least 19 U.S. states.
Pfizer Chief Executive Albert Bourla appeared to counter the new findings by saying that a booster dose of the vaccine is needed as a bulwark against the Omicron variant.
“Although two doses of the vaccine may still offer protection against severe disease caused by the Omicron strain, it’s clear from these preliminary data that protection is improved with a third dose of our vaccine,” Bourla said in a statement. “Ensuring as many people as possible are fully vaccinated with the first two-dose series and a booster remains the best course of action to prevent the spread of COVID-19.”