Diseases, Conditions, Syndromes

Omicron amps up concerns about long COVID and its causes

More than a year after a bout with COVID-19, Rebekah Hogan still suffers from severe brain fog, pain and fatigue that leave her unable to do her nursing job or handle household activities.

Diseases, Conditions, Syndromes

Covid pandemic 'nowhere near over': WHO

The COVID-19 pandemic is far from over, the World Health Organization chief said Tuesday, cautioning against a narrative that the fast-spreading Omicron variant is risk-free.

Immunology

Vaccines charge up natural immunity against SARS-CoV-2

According to new research, people who have had COVID enjoy strong immunity against the coronavirus for at least a year after they were initially infected. In analyzing antibodies present in the blood of COVID patients, Rockefeller ...

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