How close are we to getting a vaccine for Lyme disease? – CBC

Many thousands of Canadians have been infected with the tick-borne illness

Jun 11, 2025

Diana Moser has, to the best of her knowledge, not contracted Lyme disease, a welcome status quo that might be credited to the tick-repellant clothing she wears in the yard of her East LaHave, N.S., home, or to the insect spray she squirts on herself, or to just plain-old luck.

Or, it’s possible the good fortune is due to what some are hoping is a “game changer” in the fight against the disease, which is caused by tick-borne bacteria and, if left untreated, can lead to severe heart, joint and nervous system symptoms.

Moser is one of dozens of people in Nova Scotia, and more than 9,000 in the eastern United States, Eastern Canada and parts of Europe, who are taking part in clinical trials for a vaccine against Lyme infection.

“I think it’s incredibly important to have,” she said of a vaccine, noting she knows at least four people who have contracted Lyme disease, including one who has had it multiple times.

How close are we to getting a vaccine for Lyme disease? – CBC

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