Lyme disease is a bacterial infection transmitted through infected blacklegged tick bites. It's the most common vector-borne disease in the United States with about 476,000 cases diagnosed annually.
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Lyme disease is caused by Borrelia burgdorferi bacteria. If caught early with the characteristic bull's-eye rash, it's easily treated with antibiotics. However, delayed treatment can lead to serious complications affecting joints, heart, and nervous system.
Transmitted through infected blacklegged tick bites. Ticks must be attached 36-48 hours. Not contagious person-to-person.
Contagious Period: Not contagious between people
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A new approach to fighting Lyme disease could one day be as easy as buying a bag of garden pellets from a home improvement store.
Researchers at The University of Texas at San Antonio (UTSA) are developing a non-toxic biologic designed to reduce the spread of Lyme disease before it reaches people or pets. Rather than focusing on treating humans, the team is targeting the small wild animals that help spread the bacteria to ticks in the first place.
The product could eventually be sold in big-box
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When a man is known as a crank, it is all too easy to dismiss his every subsequent idea or utterance. Robert F Kennedy Jr, the US secretary of health and human services, once propounded the theory that the causative organism of Lyme disease was bioengineered for military purposes. But that does not mean that his decision to devote millions of dollars of research into methods of controlling the ticks that spread the disease is absurd.
Some people hold the idea that Lyme disease is not a disease a
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Tick sightings and cases of Lyme disease are increasing in Canada, but likely still being underdiagnosed, according to one infectious disease specialist. Data from eTick.ca shows that tick reports are up 38.5 per cent nationwide compared to the same time last year. Meanwhile, according to the Public Health Agency of Canada, 7,105 cases of Lyme disease - the highest on record - were reported in 2025. Health officials in Ontario, the province where most tick sightings originate, reported that there have been 359 cases of Lyme disease in the province since January, with 11 cases reported this week alone. "And that's still likely an underestimate of the true burden of Lyme disease in the country," Dr. Isaac Bogoch told CP24 on Tuesday morning. "We have to do more, for example, like having conv...
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HHS Secretary Kennedy made an announcement on Lyme disease. Sec. Kennedy spoke in Concord, New Hampshire.
As summer approaches and steadily warm temperatures persist across the U.S., Americans flock outdoors to enjoy the pleasant weather, but not without the risk of ticks.
The U.S. Department of Health and Human Services (HHS) has announced a major initiative to combat Lyme disease and other tick-borne illnesses across the country.
In collaboration with the Centers for Disease Control and Prev
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A Nantucket project is testing whether mice with protective antibodies can help slow the spread of Lyme disease
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for decades, affecting residents and raising concerns for visitors exploring the island's beaches, trails and conservation land.
Researchers are now exploring whether mice could help slow the spread of the disease.
The project, known as Mice Against Ticks, is a collaboration involving researchers from MIT that aims to reduce Lyme disease b
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Beyond the well-documented threat of Lyme disease, health officials are now highlighting a lesser-known but potentially life-threatening consequence of tick bites: a severe allergy to meat.
This condition, termed alpha-gal syndrome, was first identified about 15 years ago, linked to a particular tick species.
Cases are on the rise, with sufferers reporting symptoms like hives, diarrhea, and itchiness after consuming even a mouthful of meat, and sometimes dairy. Notably, the allergy does not aff
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For Lyme Disease Awareness Month in May, one woman revisited her family's long battle with the illness -- and highlighted an irony that still makes them laugh years later: the family dog was diagnosed faster than any of them.
Makalea, known on Instagram as @heymakalea, has spent years raising awareness about Lyme disease after going a decade without an accurate diagnosis. She wasn't the only one searching for answers. Her three younger siblings were also struggling with unexplained symptoms for
Matthew Mealer holds up his targets at the Busch Shooting Range in Weldon Spring, Missouri, in May. Mealer said he's generally skeptical of new vaccines but might consider one for Lyme disease if it proves safe and effective. Kyle Pyatt for KFF Health News hide caption
It's tick season, possibly the worst in a decade.
More and more Americans are being exposed to these parasites as climate change expands the range where they can survive. That means more people are also exposed to the bevy of hea
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Biologist Vett Lloyd on the ticks that cause a red meat allergy -- and her work to develop a rapid Lyme disease test Reprinted with permission from Be Giant, a non-profit, non-partisan media outlet reporting on the people, places, ideas and breakthroughs shaping Canada's future. Sign up for their weekly newsletter. When Vett Lloyd was first bitten by a tick about 15 years ago, she was told by public health authorities that there were no ticks in her home province of New Brunswick. "That was quite patently false, as there was one on me," said Lloyd, a professor of biology at Mount Allison University in Sackville, N.B. "They also told me that even if there are ticks, I didn't have to worry about Lyme disease. But apparently I did." In the weeks and months following the bite, Lloyd fell ill w...
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OTTAWA, ON, June 18, 2026 /CNW/ - The Michener Awards Foundation is pleased to announce that Radio-Canada is the recipient of the 2025 Michener Award for Public Service Journalism for Dรฉrives : le labyrinthe de Lyme, an investigative series led by journalist Olivier Bernard that challenged widely held assumptions about chronic Lyme disease and prompted... OTTAWA, ON, June 18, 2026 /CNW/ - The Michener Awards Foundation is pleased to announce that Radio-Canada is the recipient of the 2025 Michener Award for Public Service Journalism for Dรฉrives : le labyrinthe de Lyme, an investigative series led by journalist Olivier Bernard that challenged widely held assumptions about chronic Lyme disease and prompted significant public health action in Quebec. Presented annually, the Michener Award hono...
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View WHO Resources โDisease information on Virus Watcher is reviewed by our Chief Epidemiologist, a former CDC lead analyst for FluSight forecasting. Outbreak data is aggregated from verified sources including BEACON, ProMED, WHO, CDC, and 50+ national health agencies. This information is for educational purposes and should not replace professional medical advice.
Last reviewed: 2026-07-19
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