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Lyme Disease: What you need to know about the cause, symptoms and prevention

Lyme disease is preventable, if caught early, and also treatable. But identifying symptoms and getting prompt treatment can make a world of difference. If you live in, or you’re traveling to, tick-prone regions, your best defence is to be informed and vigilant

August 01, 2025 / 11:21 IST
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Lyme disease is an illness that is transmitted to humans through ticks- difficult to diagnose early because of its sometimes vague or flu-like symptoms. Without treatment, the disease can advance and cause serious health problems such as joint pain, neurological issues and heart problems (Image: Pexels)

Lyme disease is an illness that is transmitted to humans through Ticks carrying the bacterium Borrelia burgdorferi, and in some cases Borrelia mayonii. It’s spread to humans through the bite of infected black-legged ticks, often called deer ticks. Lyme disease can be difficult to diagnose early because of its sometimes vague or flu-like symptoms. Without treatment, the disease can advance and cause serious health problems such as joint pain, neurological issues and heart problems.

The protection against the risk for Lyme disease is awareness. Knowing the symptoms and taking protective measures while outdoors can help tremendously. "Early diagnosis is key," comments Dr. Arjun Mehta, Infectious Disease specialist at Sunrise Multispeciality Clinic. Fast treatment with antibiotics can often clear up the infection entirely, but a delay in diagnosis can cause long-term health problems.”

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What Causes Lyme Disease?

Lyme disease is most caused by Borrelia burgdorferi, a corkscrew-shaped bacterium carried by the deer tick. These ticks can then become infected when they feed on rodents, birds or deer carrying the bacteria. If the tick attaches and feeds on the blood of a human for 36 to 48 hours or longer, there is a risk of infection by the Lyme disease bacteria. It is worth noting that not all ticks possess Lyme disease and transmission usually requires prolonged attachment.