Andrea Ammon, director of the European Centre for Disease Prevention and Control (ECDC). Photo courtesy of ECDC official website
"In the current situation, vaccination alone will not allow us to prevent the impact of the Omicron variant, because there will be no time to address the vaccination gaps that still exist," Andrea Ammon, director of the European Centre for Disease Prevention and Control (ECDC), said in a statement.
The agency meanwhile also raised their risk assessment for Omicron's impact on public health from "high to very high" to "very high."
The agency called for strengthening and reintroduction of "non-pharmaceutical interventions," such as mask-wearing, hand hygiene, distance working, and prevention of crowds in public spaces.
"It is urgent that strong action is taken to reduce transmission and alleviate the heavy burden on health care systems and protect the most vulnerable in the coming months," Ammon added.
Ammon said that "there are indications that community transmission is already ongoing in EU/EEA countries," and that modelling suggested that a further rapid increase in Omicron cases was "imminent."
EU health commissioner Stella Kyriakides said the report from the ECDC showed that "the coming months will be difficult."
"Omicron is likely to come in a big wave, bringing renewed pressure on health care systems," Kyriakides said in a statement.
She stressed that 66 percent of the EU population had been fully vaccinated, but said the countries of the union could do better and that "boosters should be our wave-breaker."
"We need utmost respect of public health measures, combined with a rapid increase in booster vaccination to address Omicron," Kyriakides added, noting that it was "very worrying" that some countries lagged in their vaccination rollout and that 50 percent of the populations in four member states were still not fully vaccinated.
World Health Organization (WHO) chief Tedros Adhanom Ghebreyesus said Tuesday that the Omicron variant had been reported in 77 countries and had "probably" spread to most nations undetected "at a rate we have not seen with any previous variant".
Tedros also cautioned against "dismissing Omicron as mild," pointing out that even if the variant does cause less severe disease, "the sheer number of cases could once again overwhelm unprepared health systems".