Showing posts with label vectors. Show all posts
Showing posts with label vectors. Show all posts

Friday, June 05, 2026

Quick hits: Tick app; Northeast rice crops; health benefits of dancing; moon farms; meteorologists get to Hollywood


As spring turns into summer, more ticks are hitching rides on socks, shoes, pant legs and hairdos. The tiny vectors bite thousands of people each year and spread diseases such as alpha-gal syndrome, Lyme disease, babesiosis and Rocky Mountain spotted fever. But there is hope. Researchers are asking people to share their tick bites and discoveries on The Tick App so that their habits can be better understood and more effective preventive practices can be developed. The Tick App also gives tips for identifying and removing ticks.

The Northeast isn't known as a rice-growing mecca, but as the region's climate changes, some farmers are giving the crop a try. "Around New York and beyond, weather has shifted to become more extreme, bringing intense rainfall and hailstorms that could damage crops," reports Alice Sun for Offrange. Rice paddies are flood-resistant, able to withstand extreme weather, and the crop fetches a good price. Researchers at Cornell University, along with some "pioneering farmers are working to make it a more common crop in the Northeast, as a buffer for farmers to adapt to increasingly unpredictable weather."
Maria isn't sure about Elmo's reasoning. (Sesame Street photo)
Fans of "Sesame Street," past or present, may want to watch the new documentary tracing the life and career of actress Sonia Manzan, better known as the character "Maria." As Maria, Manzan became the first Latina to appear on a regular TV series, reports Greg Toppo of The74. The film travels back to Manzan's difficult upbringing in the South Bronx during the 1950s, follows her big break with the musical Godspell, and includes her adventures with Oscar the Grouch and Elmo on Sesame Street. The film is currently touring at film festivals throughout the spring and summer.

Even dancing from a sitting position is considered
healthy movement. (Photo by E. Marritz,Dance for PD)
What activity can be done while sitting or standing, creates joy and is healthy? If you thought dancing, you're correct. "Modern research is now catching up to the fact that dance is medicine, a deeply effective intervention for physical, cognitive and emotional health," reports Michaela Haas for Reasons to be Cheerful. "In a longitudinal study, seniors who took part in regular dance training fell less often and were 'physically better off and mentally fitter' than those in the control group."

It's not going to be science fiction for much longer: NASA is learning how to farm on the moon. "As we get ready to feed astronauts on the Moon and Mars, NASA scientists are figuring out how to build soil from scratch," reports Lela Nargi for Offrange. "Ralph Fritsch, a NASA retiree and lead subject matter expert for the Mars to Table challenge, which seeks to identify plausible 'surface habitat food systems,' believes space ag will probably start with hydroponics. . . . Although Fritsch believes dirt-based space greenhouses are years from fruition, there’s still been heavy investment in research."


Everyone asks about, talks about and complains about the weather -- it's a shared human experience. With the exception of farmers, who are also weather obsessed, few people might glamorize meteorologists. Until now. "Meteorologists are rarely the heroes of major Hollywood movies. Never say never," writes Rebecca Hersher of NPR. "The new film 'Pressure' is a lightly fictionalized version of the actual lead-up to the D-Day invasion of France by Allied troops during World War II, and the crucial role of meteorologists in deciding when that battle would happen." 

Friday, May 01, 2026

An early spring means more ticks to avoid

As spring arrived across much of the U.S., more people ventured outside to enjoy nature, but unfortunately, the warmer temperatures also awakened ticks. "Tick season seems to be off to a fast start, with an unusually high number of bites already reported across the country," reports Mike Stobbe of The Associated Press.

All tick bites warrant attention because they can spread "serious diseases, including Lyme disease, Rocky Mountain spotted fever and alpha-gal syndrome, a red meat allergy," Stobbe explains. "Lyme disease is the most common, with an estimated 476,000 people treated for it each year, according to the CDC."

A 'questing' tick perches itself on the edge of a branch and 
waits for a host to walk past. (Entomology Today photo) 
Although most people know that ticks are tremendously adept at attaching themselves to people and animals, many may not know why. Understanding how ticks "find" their victims can be a first line of defense, simply by knowing where to look.

Ticks seeking a host are most often found in ankle-high vegetation where they exhibit a behavior known as "questing." To quest, all ticks do is anchor themselves to the tips of grasses, leaves, or shrubs and extend their front legs and wait for an animal or human to walk by, according to Entomology Today. Ticks also like to "link" together, so they can fall on a host in a chain, bite and feed.

To prevent tick bites, experts suggest walking "in the middle of paths and wearing light-colored clothing treated with the insecticide permethrin," Stobbe adds. "And use Environmental Protection Agency (EPA)-registered insect repellents."

The risk of disease can be reduced if ticks are found early and removed immediately. "It’s not necessary to go to a doctor unless you think the tick has been on you for days or if you develop a rash or other symptoms," Stobbe reports. 

Friday, August 08, 2025

Alpha-gal syndrome, also called the 'red meat allergy,' is spreading. Lone star and black-legged ticks are to blame.

Cases of suspected alpha-gal syndrome based on confirmed laboratory evidence. (CDC map via The Conversation)

Despite being unable to jump or fly, ticks are surprisingly good at hiding in vegetation and attaching to people as they walk or hike past. When a tick attaches to a person's flesh and begins to suck blood, the tick injects its saliva -- and anything it contains -- into the person's body. Certain ticks expel alpha-gal sugar molecules into their host's body, which can, months later, leave the person allergic to specific proteins.

"This delayed allergic reaction is called alpha-gal syndrome. While it’s commonly called the 'red meat allergy,' that nickname is misleading, because alpha-gal syndrome can cause strong reactions to many products, beyond just red meat," writes entomologist Lee Rafuse Haines for The Conversation. Dairy products, gelatin and even some prescription medications can trigger a response.

Alpha-gal syndrome isn't a disease; it's a reaction to the "alpha-gal sugar molecule [that] exists in the tissues of most mammals, including cows, pigs, deer and rabbits. But it’s absent in humans," Haines explains. "When a big dose of alpha-gal gets into your bloodstream through a tick bite, it can send your immune system into overdrive to generate antibodies against alpha-gal. In later exposure to foods containing alpha-gal, your immune system might then launch an inappropriate allergic response."

Once a person is exposed to the alpha-gal sugar protein through a tick bite, it can take months for an allergic reaction to occur. Syndrome symptoms can "range from hives or swelling to crushing abdominal pain, violent nausea or even life-threatening anaphylactic shock," Haines adds.

Alpha-gal syndrome is commonly blamed on the lone star tick bites, but other ticks can spread it as well. In North America, tick bites from the lone star tick and the black-legged tick, also called a deer tick, can cause alpha-gal syndrome. Scientists are also looking at other species of ticks found in the U.S. as possible culprits.

Even as alpha-gal syndrome spreads in the U.S., not all medical professionals have experience with it. Haines writes, "A study in 2022 found that 42% of U.S. health care practitioners had never heard of alpha-gal syndrome."