How Thailand 'Disease Detectives' Use an App to Fight Livestock-Borne Outbreaks

BBC, Youtube
BBC, Youtube

Imagine an Instagram that could be used to inspire real social action—perhaps one designed to combat the spread of deadly diseases. This might sound far-fetched, but a version of this app—known as PODD (Participatory One Health Disease Detection project or "look closely and you will see" in Thai)—already exists in Thailand. Thanks to a group of vets at Chiang Mai University, the app is now helping rural Thailand communities fight back against livestock-borne diseases like Ebola and bird flu.

Here's how it works: "Disease detectives," or volunteers with access to the PODD app, snap pictures of any "abnormal health events" they might see around the village. The images they take through the app are location-tagged, which allows scientists accessing the database to predict infection patterns. Within 24 hours of the reported incident, vets visit the scene to observe the threat and treat the area accordingly.

An estimated 5000 volunteers now access the app to regularly report incidents. This, in turn, has effectively stopped the spread of many diseases and saved the Thai government millions of dollars.

Watch the full video from BBC below:

What You Should Know About Necrotizing Fasciitis, the 'Flesh-Eating' Infection

DragonImages/iStock via Getty Images
DragonImages/iStock via Getty Images

You’ve likely stumbled across one of several recent news stories describing cases of necrotizing fasciitis, or “flesh-eating bacteria.” The condition can follow exposure to certain bacteria in public beaches, pools, or rivers. This July, a man in Okaloosa County, Florida with a compromised immune system died after going into local waters. Just two weeks before, a 12-year-old girl was diagnosed with necrotizing fasciitis after scraping her foot in Pompano Beach, Florida. The stories and their disturbing imagery spread on social media, inviting questions over the condition and how it can be avoided.

According to the Centers for Disease Control and Prevention, necrotizing fasciitis can be caused by different strains of bacteria, with group A Streptococcus (strep) being the most common. When group A strep enters the body through a break in the skin like a cut or burn, a serious and rapidly spreading infection can develop. People will have a high fever, severe pain at the site of exposure, and eventual tissue destruction, which gives the condition its name. Necrotizing is to cause the death of tissue, while fasciitis is inflammation of the fascia, or tissue under the skin.

Because necrotizing fasciitis spreads so quickly, it’s crucial for people to seek medical attention immediately if they see early symptoms: rapid swelling and redness that spreads from a cut or burn, fever, and severe pain. Doctors can diagnose the infection using tissue biopsies, blood work, or imaging of the infected site, though they’ll almost always initiate treatment immediately. IV antibiotics, surgery to excise dead tissue, and blood transfusions are all used in an attempt to resolve the infection.

Even with care, necrotizing fasciitis can lead to complications like organ failure or sepsis. An estimated one in three people who are diagnosed with the condition die.

Fortunately, the condition is extremely rare in the United States, with an estimated 700 to 1200 cases confirmed each year. The CDC acknowledges, however, that the number is likely an low estimate.

Because group A strep can be found in water, the CDC advises people to avoid going into public waters with any kind of open wound. This applies to both public beaches and rivers as well as swimming pools or hot tubs. Chlorination is no guarantee against group A strep. Any cut or other wound should always be cleaned with soap and water. It’s especially important that people with compromised immune systems from illness, diabetes, cancer, or another conditions be exceedingly careful.

Rising ocean temperatures may make necrotizing fasciitis more common, unfortunately. A recent study in the Annals of Internal Medicine suggested that warmer water temperatures in Delaware Bay has allowed another kind of bacteria, Vibrio vulnificus, to flourish, resulting in five cases of necrotizing fasciitis in 2017 and 2018. Previously, only one case had been confirmed since 2008. Florida is also known to harbor group A strep in seawater.

But, owing to its rarity, necrotizing fasciitis should not overly concern people with healthy immune systems and unbroken skin. If you suffer a cut with a reddened area accompanied by severe pain and fever, however, seek medical evaluation right away.

Pioneering Heart Surgeon René Favaloro Is Being Honored With a Google Doodle

Dr. René Favaloro (left) pictured with colleague Dr. Mason Sones.
Dr. René Favaloro (left) pictured with colleague Dr. Mason Sones.
The Cleveland Clinic Center for Medical Art & Photography, Wikimedia Commons // CC BY 4.0

Argentinian heart surgeon René Favaloro is the subject of today’s Google Doodle, which features a sketched portrait of the doctor along with an anatomical heart and several medical tools, The Independent reports.

The renowned doctor was born on this day in 1923 in La Plata, the capital of Argentina’s Buenos Aires province, and pursued a degree in medicine at La Plata University. After 12 years as a doctor in La Pampa, where he established the area’s first mobile blood bank, trained nurses, and built his own operating room, Favaloro relocated to the U.S. to specialize in thoracic surgery at the Cleveland Clinic.

In 1967, Favaloro performed coronary bypass surgery on a 51-year-old woman whose right coronary artery was blocked, restricting blood flow to her heart. Coronary bypass surgery involves taking a healthy vein from elsewhere in the body (in this case, Favaloro borrowed from the patient’s leg, but you can also use a vein from the arm or chest), and using it to channel the blood from the artery to the heart, bypassing the blockage. According to the Mayo Clinic, it doesn’t cure whatever heart disease that caused the blocked artery, but it can relieve symptoms like chest pain and shortness of breath, and it gives patients time to make other lifestyle changes to further manage their disease.

Favaloro wasn’t keen on being called the “father” of coronary bypass surgery, but his work brought the procedure to the forefront of the clinical field. He moved back to Argentina in 1971 and launched the Favaloro Foundation to train surgeons and treat a variety of patients from diverse economic backgrounds.

Favaloro died by suicide on July 29, 2000, at the age of 77, by a gunshot wound to the chest. His wife had died several years prior, and his foundation had fallen deeply into debt, which Argentinian hospitals and medical centers declined to help pay, The New York Times reported at the time.

“As a surgeon, Dr. Favaloro will be remembered for his ingenuity and imagination,” his colleague Dr. Denton A. Cooley wrote in a tribute shortly after Favaloro’s death. “But as a man ... he will be remembered for his compassion and selflessness.” Today would have been his 96th birthday.

[h/t The Independent]

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