Diseases like malaria ( spread by mosquitoes ) , plague ( by fleas ) and lyme disease ( by ticks ) are predicted to surge as the carriers enjoy climate-related conquests of territory .
Itchy insect bites : bites of mosquitoes , chiggers ( harvest mites ) , fleas , and bedbugs usually cause itchy , red bumps .
发痒的昆虫叮咬:蚊子、恙螨(沙蚤)、跳蚤和臭虫的叮咬通常导致瘙痒、红肿。
It came from asia , arriving the way most new species still do , along trade routes ; and it was carried by rats , which carried fleas , which carried the bacillus concerned .
Dogs also were at higher risk of lymphoma if their owners used self-applied insect growth regulators on their yards , such as nylar , precor and gentrol , which control cockroaches , fleas and other pests .
Ever used an exterminator to get rid of mice , termites , fleas or cockroaches ?
曾经用药除过老鼠,白蚁,跳蚤和蟑螂吗?
A study last year in the american journal of tropical medicine and hygiene suggested that early snowmelt in western states had led to drier soil in rodent burrows and fewer fleas to spread plague .
As you watch them jump and hit the top , you will notice something interesting . The fleas continue to jump , but they are no longer jumping high enough to hit the top .