Zambia among Sub-Saharan African countries that have not yet received any vaccines.

While more than 60 million vaccine doses have been administered in the U.S., the country of Zambia has not yet received any vaccines. According to international vaccine equity initiative COVAX, unchecked infection anywhere in the world may give rise to further mutations that threaten health globally. CIDRZ lead laboratory scientist Michelo Simuyandi joins "CBSN AM" on the phone from Lusaka, Zambia, to talk about the situation in Sub-Saharan Africa.

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Doctors warn homemade baby formula can be dangerous.

Doctors warn homemade baby formula can be dangerous.

Pediatric experts warn that feeding babies homemade baby formula can be dangerous. Dr. Meg Frizzola, chair and chief of pediatric critical care medicine for Nemours Children's Health System in Wilmington, Delaware, and Nicole Fragale, manager of c...

Republicans delay Senate debate on Biden's coronavirus relief bill.

Republicans delay Senate debate on Biden's coronavirus relief bill.

The Senate is preparing to debate President Biden's $1.9 trillion coronavirus relief bill. CBS News congressional correspondent Nikole Killion joins CBSN's Lana Zak to discuss the latest developments from Capitol Hill.  CBSN is CBS News’ 24/7 digi...

American Rescue Plan makes its way to Senate, but off to a slow start.

American Rescue Plan makes its way to Senate, but off to a slow start.

President Biden's COVID relief bill has hit the Senate floor, but it got off to a slow start when GOP Senator Ron Johnson called for the entire bill to be read before debate can begin. CBS News reporter Sarah Ewall-Wice joins CBSN's Lana Zak to di...

Activist Amanda Nguyen on recent spike in anti-Asian hate crimes:  «We are dying to be heard».

Activist Amanda Nguyen on recent spike in anti-Asian hate crimes: «We are dying to be heard».

Police departments in major cities reported a nearly 150% increase in hate crimes targeting Asian Americans and Pacific Islanders in 2020 compared to the year before, according to an analysis by California State University's Center for the Study o...

Global warming led to ancient mass extinction event, scientists say.

Global warming led to ancient mass extinction event, scientists say.

According to new research, a rise of greenhouse gases 250 million years ago led to the disappearance of most life on Earth. CBS News meteorologist and climate specialist Jeff Berardelli spoke to Brock University geochemist Dr. Uwe Brand to find ou...