In Tunisia in May 1909, Nicolle performed a classic series of experiments that decisively identified the common louse as the key carrier of the Rickettsia microbe.
From the washingtontimes.com
The louse carries a violent, epidemic form of the disease common in Europe.
From the time.com
Wild populations have been in decline for decades, and the sea louse, a parasite common on farmed salmon, has taken much of the blame.
From the newscientist.com
The most common weapons against the head louse use chemicals known as pyrethroids and organophosphates, both of which disrupt the creature's nerves.
From the newscientist.com
This is common practice because North American grape species are resistant to phylloxera, a root louse that eventually kills the vine.