[Personal protection measures against blood-sucking insects and ticks].

Blood-sucking arthropods are major vectors of various pathogens like viruses, bacteria, protozoa and nematodes. Preventing exposure to the vector is imperative especially when vaccine and prophylactic treatments are not available. Personal protection measures (PPM) are essential and often the only means available when dealing with blood-sucking disease transmitting arthropods.

Patterns of insecticide resistance in larval Culex pipiens populations in Israel: dynamics and trends.

Resistance to insecticides of larval Culex pipiens populations in Israel has been monitored for ten years and the results were used for control planning. The insecticides tested were the organophosphates chlorpyrifos, fenthion, and temephos and the pyrethroids permethrin and cypermethrin. Over the years the relative resistance (R/R) values to chlorpyrifos in most populations tested were between 200-400, with records of up to 700 R/R.

[The reemergence of malaria in Israel?].

Worldwide, malaria is the most prevalent vector-borne disease, endemic or hyperendemic in more than 100 countries. The disease is transmitted to humans by the bite of an infected female Anopheles mosquito, a protozoan of the genus Plasmodium with a life cycle split between man (the vertebrate host) and the mosquito vector. Since the 1960s, Israel has been considered a malaria free country, despite a substantial number of imported cases each year (mainly P.