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7 Million Americans With Weak Immune Systems Need to Know if They Need a 3rd COVID Shot

Millions of immunocompromised people want to know if they need a 3rd dose of the Covid-19 vaccine to build an antibody response to provide effective immunity.

Was 2019 a High-Water Mark for Global Public Health?

There is a reason most children today live into adulthood, women around the world no longer feel like surviving childbirth is a roll of...

Meningitis and Encephalitis. Symptoms and Treatments

Infections and other disorders affecting the brain and spinal cord can activate the immune system, which leads to inflammation. These diseases, and the resulting inflammation, can produce a wide range of symptoms, including fever, headache, seizures, and changes in behavior or confusion

The Human Immunodeficiency Virus (HIV), CD4+ T lymphoctyes and AIDS

Human immunodeficiency virus (HIV) infection results from 1 of 2 similar retroviruses (HIV-1 and HIV-2) that destroy CD4+ T lymphocytes and impair cell-mediated immunity, increasing risk of certain infections and cancers.