Health Smart

Can you get COVID-19 more than once? Here’s what the evidence reveals

This undated electron microscope image made available by the U.S. National Institutes of Health in February 2020 shows the Novel Coronavirus SARS-CoV-2. Also known as 2019-nCoV, the virus causes COVID-19. The sample was isolated from a patient in the U.S. (NIAID-RML via AP)

Sportmix pet food products recalled after possible link to 28 dog deaths: FDA

Pet food is seen in a file photo. (iStock/Getty Images Plus)

Young man dies of rare disease after being exposed to rodent droppings: Nevada health officials

This undated photo shows a rat in the a pipe in London. (AFP via Getty Images)

Salinas company recalls thousands of romaine lettuce packages due to possible E. coli contamination: FDA

Long-acting shot helps women avoid HIV infection, study finds

In this July 2, 2020 file photo, nurse Nomautanda Siduna, right, talks to a patient who is HIV-positive inside a gazebo used as a mobile clinic in Ngodwana, South Africa. Researchers are stopping a study early after finding that a shot of an experimental medicine every two months worked better than daily Truvada pills to help keep uninfected women from catching HIV from an infected sex partner. The news is a boon for AIDS prevention efforts especially in Africa, where the study took place, and where women have few discreet ways of protecting themselves from infection. (AP Photo/Bram Janssen, File)

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Massachusetts man dies from eating bags of black licorice

This Sept. 23, 2020 photo shows an arrangement of licorice candy pieces in New York. (AP Photo/Patrick Sison)

Studies: Flu and pneumonia shots may lower risk for Alzheimer’s

Researchers can now image the entire disease process from the start of the tangles (tau proteins that have collapsed and twisted) and plaques (clumps of amyloid proteins that build up in the space between nerve cells) that may unlock the secrets of Alzheimer's disease. (CNN)

Study suggests certain blood types linked to higher, lower coronavirus risk

Scientists are finding evidence that blood type may be a risk factor for COVID-19. In one study, people with Type A blood were more likely to be hospitalized for the disease, while people with Type O blood were less likely to have severe COVID-19. (Don Bartletti / Los Angeles Times)

More evidence suggests that pregnant women could pass coronavirus to fetus

In this photo, a pregnant woman wearing a face mask and gloves holds her belly as she waits in line for groceries with hundreds during a food pantry sponsored by Healthy Waltham for those in need due to the COVID-19 virus outbreak, at St. Mary's Church in Waltham, Mass on May 7, 2020. A small study in Italy strengthens evidence that pregnant women infected with the coronavirus might be able to spread it to a fetus before birth. Research was released on July 9, 2020. (AP Photo/Charles Krupa)

FDA expands list of potentially toxic hand sanitizers to more than 2 dozen products

Hand sanitizer is seen in a file photo. (Shutterstock)

Experimental treatment may have rid man of HIV, UC San Francisco doctors say

This mage made from video shows the hands of a Brazilian man who was infected with the AIDS virus and has shown no sign of it for more than a year since he stopped HIV medicines after an intense experimental drug therapy aimed at purging hidden, dormant virus from his body, doctors reported Tuesday, July 7, 2020. “I’m very moved because it’s something that millions of people want,” said the 35-year-old man, whose spoke to The Associated Press on condition that his name not be published. (Federica Narancio/Zoom via AP)

U.S. coronavirus deaths may be 28% higher than official count, study estimates

Wanda DeSelle, a victim of COVID-19, is laid to rest in Madera, Calif. A new study says the official count of coronavirus-related deaths in the U.S. may be off by 28%.(Carolyn Cole / Los Angeles Times)

Study: Moderate drinking may improve cognitive health for some older adults

A file photo of an alcoholic beverage being poured into glass. (iStock/Getty Images Plus)

COVID-19 is even more sinister in the body than scientists had realized

The novel coronavirus is seen under an electron microscope. (National Institute of Allergy and Infectious Diseases)

Health Smart: Crisis fatigue