Lyme disease is caused by a bacterium transmitted to people by deer ticks. deer ticks are almost never born infected with the bacterium, but they can pick it up from feeding on an infected host in any of the tick's three successive stages of development: larva, nymph, adult. once infected, a tick remains infected through any subsequent developmental stages, but since a tick feeds on only one host in each stage, it follows that

People cannot be infected by a tick that picked up the Lyme disease bacterium in the adult stage

Explanation:

Well, as you can see from the question above, ticks can pick up the bacteria responsible for Lyme disease at any of its developmental stages (larva, nymph, adult), however, these ticks only feed on a single host at each stage. of development. With this we can conclude that a tick that contracted the bacteria in adulthood will not pass the disease to healthy hosts, because this adult tick will only feed on a single host, which is already infected.