Studies on the population and infestation rates of domestic cockroaches were conducted from September 1999 to October 2000 in 154 residences in 21 districts (dong) in Busan and 170 residences in 12 districts in Seoul, Republic of Korea, using sticky traps. Blattella germanica, Periplaneta americana and Periplaneta fuliginosa were collected from three different types of houses, apartments, singl...

Blattella germanica allergen 2(Bla g 2) gene was amplified by RT-PCR from total RNA of Blattella germanica and inserted into pET-41b vector properly. GST-Bla g 2 was expressed in E.coli via IPTG induction, a relative molecular mass of approximately 74kDa was showed by SDS-PAGE. The expressed fusion protein was purified by Ni+-agarose affinity chromatography, an emulsion was prepared with the pu...

Background and Objective: Today, one of the problems of health systems is the presence of cockroaches in hospitals as insects that move freely in and out of the hospitals and are infected with pathogenic bacteria. The aim of this study was to identify carbapenem resistance genes in Escherichia coli isolated from Blattella germanica by dot blot assay in Hamadan hospitals in the west of Iran. Me...

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BACKGROUND Cockroaches are found as the most common urban pests of tropical countries, prompting economic and serious health risk problem for humans by carrying microbes and allergens, acting as vector for various pathogens of diseases. The present study was conducted from April 2013 to March 2014 in various human dwelling localities of urban area of district Lahore, Pakistan. METHODS Cockroa...