urban typhus –>
A mild form of typhus occurring in urban areas, reported in Mediterranean areas.
Synonym: urban typhus, siberian tick typhus, tick-borne rickettsiosis caused by infection with rickettsia sibirica.
Certain species are capable of expressing characteristics indicative of the state of the ecosystem they occupy. They are called indicator species. Endangered species are those that face the risk of extinction. Get to know more about these species in this tutorial...