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.
Plants protect themselves by releasing hydrogen peroxide to fight against fungal invasion. Another way is by secreting compounds, such as lignin, ethylene, galls, and tannins. Find out how these mechanisms protect the plants from pathogens...