Medical research

Messenger RNA: How a long shot idea led to COVID-19 vaccines

Hungarian-born scientist Katalin Kariko's obsession with researching a substance called mRNA to fight disease once cost her a faculty position at a prestigious US university, which dismissed the idea as a dead end.

Health

Hospitals competing for nurses as US coronavirus cases surge

As the coronavirus pandemic surges across the nation and infections and hospitalizations rise, medical administrators are scrambling to find enough nursing help—especially in rural areas and at small hospitals.

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