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Cooling towers and AC units appear in New York's Harlem neighborhood in August. Legionnaires’ outbreaks are often tied to contaminated air

What people should know about Legionnaires’ disease, which has killed 7 people in New York

By Katia Hetter, CNN (CNN) — An outbreak of Legionnaires’ disease that hospitalized 90 people and killed seven others has ended, according to the New York City Health Department. This recent outbreak raises questions about Legionnaires’ disease. What causes the disease, and how serious is it? What symptoms do infected people exhibit, and who should

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TPO helps gel nail polish set under an ultraviolet light.

Europe bans chemical used in some gel nail polishes, classifying it as a ‘reproductive toxicant’

By Jacqueline Howard, CNN (CNN) — The European Union is now prohibiting the use of a key chemical ingredient in some gel nail polishes and other cosmetic products. The ban, which went into effect this week, targets the use of trimethylbenzoyl diphenylphosphine oxide or TPO, which was classified as a type of “reproductive toxicant” by

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US Secretary of Health and Human Services Robert F. Kennedy Jr.’s confidence about previewing autism conclusions this month comes amid broad upheaval for federal health agencies.

Kennedy said there will be autism answers this month. With public health agencies in upheaval, autism advocates are alarmed

By Sarah Owermohle, CNN (CNN) — US Health and Human Services Secretary Robert F. Kennedy Jr. pledged in April that there would be answers on the causes of autism this month. Since then, he has ousted public health officials, publicly rebuked studies showing no link between vaccines and autism, and said “interventions” are “almost certainly”

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The main campus of the Centers For Disease Control and Prevention (CDC) is seen on April 1

States band together to issue public health guidance after ‘destruction’ of the CDC

By Brenda Goodman, CNN (CNN) — Pledging communication about vaccines that will be “grounded in science, not ideology,” the governors of California, Washington and Oregon announced Wednesday they will form a West Coast Health Alliance to begin coordinating public health guidelines separate from the US Centers for Disease Control and Prevention. “The new alliance represents

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"We agree with President Trump about the role data and transparency play in helping to inform patients and providers about their decision to vaccinate

Pfizer responds to Trump’s call for Covid-19 vaccine data, says Operation Warp Speed deserves Nobel Peace Prize

By Meg Tirrell, CNN (CNN) — In response to a call from President Donald Trump to make the positive impact of Covid-19 vaccines public, drug giant Pfizer posted a collection of more than 200 news releases and statements and 27 peer-reviewed data publications since early 2020. “President Trump’s call for transparency is welcomed, and we

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Covid-19 Pandemic Timeline Fast Facts

CNN Editorial Research (CNN) — Here’s a look at the coronavirus outbreak, declared a worldwide pandemic by the World Health Organization. The coronavirus, called Covid-19 by WHO, originated in China and is the cousin of the SARS virus. Coronaviruses are a large group of viruses that are common among animals. The viruses can make people

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