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Children with no COVID-19 symptoms may shed virus for weeks

New research suggests that children can shed SARS-CoV-2, the virus that causes COVID-19, even if they never develop symptoms or for long after symptoms have cleared

An Unexpected Role for the Brain’s Immune Cells

An important part of the brain's immune system, cells called microglia constantly extend and retract "branches" from their cell body to survey their environment.

Menopause, Understanding the Basics

Menopause is when your period stops permanently. Menopause is a normal part of a woman’s life. It is sometimes called “the change of life.

NASH and Nonalcoholic Fatty Liver Disease (NAFLD)

Two types of NAFLD are simple fatty liver and nonalcoholic steatohepatitis (NASH). Simple fatty liver and NASH are two separate conditions.