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A small number of people in Florida and Texas have contracted malaria

Health

What we know so far about the malaria cases in Florida and Texas

Five malaria cases have been reported in Florida and Texas, all of which were acquired through local transmission

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Health

Ghana is the first country to approve highly effective malaria vaccine

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Health

Legal marijuana in the US may be less potent than packaging claims

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Health

Drug overdose deaths have quadrupled among older US adults

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A person spraying some plants

Health

Massive tick-killing effort fails to reduce Lyme disease cases

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An image of tents set up on an urban street

Society

We can reduce homelessness if we follow the science on what works

Comment

2009 Margaret Williams, PhD; Claressa Lucas, PhD;Tatiana Travis, BS Under a moderately-high magnification of 6500X, this colorized scanning electron micrograph (SEM) depicted a grouping of Gram-negative Legionella pneumophila bacteria. Please see PHIL 11092 through 11140 for additional SEMs of these organisms, specifically PHIL 11121 for a black and white version of this image. You?ll note that a number of these bacteria seem to display an elongated-rod morphology. L. pneumophila are known to most frequently exhibit this configuration when grown in broth, however, they can also elongate when plate-grown cells age, as it was in this case, especially when they?ve been refrigerated. The usual L. pneumophila morphology consists of stout, ?fat? bacilli, which is the case for the vast majority of the organisms depicted here. These bacteria originated on a 1 week-old culture plate (+/- 1 day), which had incubated a single colony, at 37?C upon a buffered charcoal yeast extract (BCYE) medium with no antibiotics.

Health

Legionnaires’ disease may be cause of mystery pneumonia in Argentina

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A child with symptoms of hand, foot and mouth disease

Health

A common childhood illness could be behind 'tomato flu' outbreak

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Demonstrators during a rally calling for action on gun safety on Capitol Hill in Washington, D.C., US, on Thursday, May 26, 2022.??In the wake of the school shooting in Uvalde, Texas, in which 19 students and two teachers were killed, students across the country are once again planning to walk out as a form of political action against gun violence.??Photographer: Ting Shen/Bloomberg via Getty Images

Health

Which US laws have been shown to cut gun violence and mass shootings?

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Participants light candles ahead of the sixth annual Bridge Of Life Suicide Awareness/Prevention candlelight vigil organised by YEG Mental Health, a group dedicated to raising awareness about mental health issues in the greater Edmonton area. On Friday, September 10, 2021, in Edmonton, Alberta, Canada. (Photo by Artur Widak/NurPhoto via Getty Images)

Health

Firearm suicides are rising in the US despite declining globally

In the past three decades, suicides involving guns have steadily dropped around the world. While down overall in the US since 1990, they began to climb in 2006 – coinciding with increased access to firearms

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Health

Legal lead levels in US tap water may harm people with kidney disease

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Definition

Herd immunity

Health

Face masks needed in the UK until 2022, says poll of disease experts

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Environment

Health impacts of climate change have reached 'worrying' levels

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