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Lyme Disease Transmission by Infected Ticks, Infection Kinetics Elaborated

Lyme borreliosis is a disease caused by bacteria of the genus Borrelia that are transmitted by a bite from a tick of the genus Ixodes. Scientists from the Institut Pasteur used mice to study the transmission of bacteria by ticks infected with various European and North American species of Borrelia.

They found evidence of rapid bacterial transmission following a bite, with infection occurring within 24 hours of an adult tick bite and sometimes even sooner for nymph bites. This is a timely reminder of the importance of removing ticks as soon as possible after being bitten to prevent infection.