Betsy Ladyzhets

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Are US booster shots sapping the world’s vaccine supply?

Are US booster shots sapping the world’s vaccine supply? Are US booster shots sapping the world’s vaccine supply?

By Betsy Ladyzhets

Posted on Oct 21, 2021

a statue of a firefighter sits with the One World Trade Center tower in the background

What 20 years of screening 9/11 first responders for health risks has taught us What 20 years of screening 9/11 first responders for health risks has taught us

By Betsy Ladyzhets

Updated on Sep 10, 2021

a person wearing a backpack and holding textbooks against a blue background with several red coronavirus illustrations

Where are we most likely to catch COVID-19? Where are we most likely to catch COVID-19?

By Betsy Ladyzhets

Posted on Mar 12, 2021