| are aedes albopictus or other mosquito species from northern italy competent to sustain new arboviral outbreaks? | the asian tiger mosquito aedes albopictus (skuse) (diptera: culicidae), native to southeast asia, has extended its geographical distribution to invade new temperate and tropical regions. this species was introduced in 1990 to italy and has since become the main pest in urban settings. it was incriminated as a principal vector in the first european outbreak of chikungunya virus (chikv) in the province of ravenna (italy) in 2007. this outbreak was associated with chikv e1-226v, efficiently transmi ... | 2010 | 20377735 |
| status of insecticide resistance in culex pipiens field populations from north-eastern areas of italy before the withdrawal of op compounds. | heavy and constant use of organophosphorus (op) larvicides selected culex pipiens l. resistant populations through two main mechanisms of genetic resistance, the increased activity of detoxifying esterase and the production of alterate acetylcholinesterase-1 (ache1) by g119s mutation. the aim of this study was the assessment of the distribution of cx. pipiens populations resistant to temephos and chlorpyrifos in the north-eastern regions of italy and the occurrence of the insensitive ache in the ... | 2010 | 21162149 |
| evidence of simultaneous circulation of west nile and usutu viruses in mosquitoes sampled in emilia-romagna region (italy) in 2009. | in recent years human diseases due to mosquito-borne viruses were increasingly reported in emilia-romagna region (italy), from the chikungunya virus in 2007 to the west nile virus (wnv) in 2008. an extensive entomological survey was performed in 2009 to establish the presence and distribution of mosquito arboviruses in this region, with particular reference to flaviviruses. | 2010 | 21179462 |
| usutu virus in italy: an emergence or a silent infection? | a two year study (2008-2009) was carried out to monitor the usutu virus (usuv) circulation in italy. sentinel horses and chickens, wild birds and mosquitoes were sampled and tested for the presence of usuv and usuv antibodies within the wnd national surveillance plan. seroconversion evidenced in sentinel animals proved that in these two years the virus has circulated in tuscany, emilia romagna, veneto and friuli venezia giulia regions. in veneto usuv caused a severe blackbird die-off disease inv ... | 2011 | 21550731 |
| study on the flying height of aedes caspius and culex pipiens females in the po delta area, italy. | we have studied the vertical distribution of culicidae in the "ancona di bellocchio" protected area (regional park of the po delta, emilia-romagna, italy) by means of nonilluminated cdc traps baited with co2. traps were placed at heights of 1.5, 3, 4, and 5 m from the ground in open areas and at 1.5, 3, 4, 5, 6, and 7 m in wooded areas. we calculated the average flying height of the species caught, i.e., in order of decreasing flying height, culex pipiens linnaeus s.l., culex modestus ficalbi, c ... | 1997 | 9474562 |
| Spatio-temporal patterns of distribution of West Nile virus vectors in eastern Piedmont Region, Italy. | ABSTRACT: BACKGROUND: West Nile Virus (WNV) transmission in Italy was first reported in 1998 as an equine outbreak near the swamps of Padule di Fucecchio, Tuscany. No other cases were identified during the following decade until 2008, when horse and human outbreaks were reported in Emilia Romagna, North Italy. Since then, WNV outbreaks have occurred annually, spreading from their initial northern foci throughout the country. Following the outbreak in 1998 the Italian public health authority def ... | 2011 | 22152822 |
| arboviral survey of mosquitoes in two northern italian regions in 2007 and 2008. | recently, italy-particularly the emilia-romagna region-was the location of consecutive outbreaks of human diseases caused by the arboviruses chikungunya virus and west nile virus. the two outbreaks, spread by different species of mosquitoes, were not related, but pointed out the lack of an arboviral surveillance program in this region. beginning in 2007 entomological surveillance was initiated in the emilia-romagna region, and in 2008 the program was improved and extended at lombardia region. us ... | 2010 | 20370434 |