Ever since Russia captured Avdiivka, what was considered Ukraine's last big stronghold, Moscow's troops have been able to make big gains in Ukraine. Russian forces have been able to maintain momentum, since Kyiv's troops retreated from this key Donetsk town on February 17. They left in haste because they ran out of weapons.

Gravitas | Russia Makes Big Advances After Avdiivka Win | Will Ukraine Lose More Frontline Areas?

The director of the Centers for Disease Control and Prevention, Dr Rochelle Walensky explained her decision to overrule the recommendation of the agency's outside advisory board and endorse COVID-19 booster shots for front-line workers.

In an interview with "Face the Nation," Walensky highlighted that there was a "scientific close call" over whether those who are high-risk of contracting COVID-19 should be eligible for a third dose of the vaccine from Pfizer and BioNTech.

<a href="https://www.wionews.com/world/us-fda-authorises-third-dose-of-pfizer-covid-19-vaccine-for-older-americans-415159">Also read |&nbsp;US FDA authorises third dose of Pfizer COVID-19 vaccine for older Americans</a>

She further said that the recommendations for boosters are for those people who spend most of their time with the population who might be unvaccinated. This includes teachers in the classroom with children under the age of 12, who are not yet eligible for COVID-19 shots.

"Our recommendation is for these limited people in the population, over 65, high-risk workers, high-risk community occupations, as well as high-risk by comorbidities," she said.

The director of the Centers for Disease Control and Prevention, Dr Rochelle Walensky explained her decision to overrule the recommendation of the agency's outside advisory board and endorse COVID-19 booster shots for front-line workers.

The director of the Centers for Disease Control and Prevention, Dr Rochelle Walensky explained her decision to overrule the recommendation of the agency's outside advisory board and endorse COVID-19 booster shots for front-line workers. In an interview with "Face the Nation," Walensky highlighted that there was a "scientific close call" over whether those who are high-risk of contracting COVID-19 should be eligible for a third dose of the vaccine from Pfizer and BioNTech. Also read | US FDA authorises third dose of Pfizer COVID-19 vaccine for older Americans She further said that the recommendations for boosters are for those people who spend most of their time with the population who might be unvaccinated. This includes teachers in the classroom with children under the age of 12, who are not yet eligible for COVID-19 shots. "Our recommendation is for these limited people in the population, over 65, high-risk workers, high-risk community occupations, as well as high-risk by comorbidities," she said.

CDC director explains move to recommend booster shots for frontline workers

Residents in Armenia struggle to the new frontline as many parts have been handed over to Azerbaijan. An agreement, brokered by Russia, has meant a return to an internationally recognised border between the Armenia-Azerbaijan that for decades had existed only on paper. WION tells you more.

Armenia: Residents struggle to adjust to the new frontline

Thousands of health care workers rallied in central Brussels on Sunday, demanding better pay and calling on the Belgian government to allocate more resources to the health sector on the frontline of the battle against the COVID-19 pandemic.

Health workers demand recognition, better equipment

Students at a Brazilian research facility in the northeastern city of Salvador developed a disinfection station for the healthcare workers on the frontlines of the combat against the coronavirus.

Brazilian students develop hospital disinfection station

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