plague of 1665造句

• :: From the Black Death article ( which is primarily about the 14th century plague ) : " One possible explanation for the disappearance of plague from Europe [ after the Great Plague of 1665 ] may be that the black rat ( " Rattus rattus " ) infection reservoir and its disease vector was subsequently displaced and succeeded by the bigger Norwegian or brown rat ( " Rattus norvegicus " ), which is not so prone to transmit the germ-bearing fleas to humans in large rat die-offs . " Note Norway rats are often called " wharf rats "-- they're more likely to have been aboard any seagoing ship than the Black rat ( which is sometimes called " ship rat ", but is smaller and a poorer swimmer than " Norvegicus ".