New Brunswick

Ever been bitten by a tick? A scientist wants to know

A research lab focusing on ticks has embarked on a project to assess how effective preventive Lyme disease measures are and hopes people who have been bitten will help.

N.B. prof Vett Lloyd hopes the research will reveal whether latest treatment approach is good one

A person's finger points to a blacklegged tick on a piece of graph paper.
Researchers are asking the public to share their experiences being bitten by ticks. Pictured is a blacklegged tick. Lyme disease is mainly transmitted by infected blacklegged ticks. (Jean-Christophe Verhaegen/Getty Images)

When it's freezing cold and snowy outside, ticks might not spring to mind, but a team at Mount Allison University wants to get people thinking about the time they were bitten by one.

Research is underway at Mount Allison University to try to assess how well preventive Lyme disease measures work after a bite.

Biology professor Vett Lloyd says the traditional way of dealing with tick bites has been to "wait and see" if people show signs of getting ill, and then to start them on antibiotics for 10 to 21 days if symptoms appear.

But the numbers of blacklegged ticks, the main transmitters of the Lyme disease bacteria, are growing, she said.

A smiling woman with glasses and short grey hair, wearing a lab coat, sits next to a microscope.
Vett Lloyd, a biology professor at Mount Allison University, says her lab's research will hopefully be able to show if short-term preventive treatment is working. (Submitted by Vett Lloyd)

"So in the past few years, there's been a switch to essentially assuming the worst, assuming that people may have been infected and giving them a preventive dose of antibiotics before they get ill," Lloyd said.

"The missing piece in there is how well that's working."

Lloyd said the treatment after a tick bite is now usually shorter with a preventative dose, and her team wants to figure out if this approach is actually working at stopping long-term effects.

The longer a tick is attached to someone, the greater the risk of transmission of the bacteria that causes Lyme. 

According to a map on the New Brunswick government website, the northern parts of the province have a lower risk of Lyme disease, according to historical disease data and tick surveillance data, while the southwestern regions have higher risk.

Lloyd said the people who get ill after a tick bite are usually good at responding, but she said the team also wants to hear from people who were treated and ended up fine as well.

A graphic that says "Lyme Disease Estimate Risk Map  Risk categories are based on historical Lyme disease case data and tick (active and passive) surveillance data.  Although there are areas where the risk of finding blacklegged ticks is higher, there is a chance of finding ticks anywhere in the province" on the left side. A legend below that says Lower Risk with a light blue mark, Moderate Risk with a teal mark, and Higher Risk with a dark teal mark.  A map, on the right of the graphic, shows a map of New Brunswick shaded light blue on the top, teal around the middle and dark teal on the southwestern part.
According to a map on the Government of New Brunswick’s website, the northern parts of the province have lower risk of Lyme disease, according to historical disease data and tick surveillance data, while the southwestern region has higher risk. (Government of New Brunswick)

The survey is available on the Lloyd Tick Lab website, and Lloyd hopes the research will be available to the public by midsummer.

"As Canada has embarked on a big experiment for our benefit, there's no point doing an experiment if you don't check what happens," she said.

"It's a short survey … whether it was single dose, longer dose, whether it's hospital, pharmacy, we want to hear how people did with any kind of treatment for Lyme disease."

ABOUT THE AUTHOR

Hannah Rudderham is a reporter with CBC New Brunswick. She grew up in Cape Breton, N.S., and moved to Fredericton in 2018. You can send story tips to hannah.rudderham@cbc.ca.

With files from Information Morning Fredericton

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