Culex

highest incidence of WNV occurred at the border of rural-suburban habitats (26). A hypothesized reason for this phenomenon is that environmental fractionation increases diversity and abundance of birds (26). Thus, increases in the fractionation of habitat strongly predict increases in WNV transmission risk (26). However, while Labeaud et al. emphasized that the highest rates of infection were on the borders of the cities and suburbs, their paper did not state whether people were safest from infection in the city or the suburb (26). Ghosh’s study, based in Minnesota, claims that the more distance from the urban core, the less significant the rate of infection– hence, the suburbs are safer–because “two out of four WNV carrying vectors, Culex restuans and Culex pipiens, are predominantly urban mosquitoes” (15).…

Culex quinquefasciatus is a mosquitoe which came from the southern house mosquito. It can be found in tropical and subtropical regions of the world. Below are the informations regarding C. quinquefasciatus: Kingdom: Animalia Phylum: Arthropoda Class: Insecta Order: Diptera Family: Culicidae Genus: Culex Species: C. quinquefasciatus The female mosquito has a medium sized body with a brownish appearance. The proboscis is dark but often has a pale scaling midway on the underside. The wings are…

People are at the highest risk of exposure to infected mosquitoes from the months of July through October. Person of any age can contract the infection after being bitten by an infected mosquito.However, people over the age of 50 are at most risk of developing the serious disease and may even involve the nervous system. It is pertinent to mention that over 80% of persons infected with the West Nile Virus never fall ill. Even if someone falls ill, most of the cases are mild with symptoms such as…

dramatically impact a population are rare but a single mutation can have a large and lasting effect on the organism it occurs in. There are many examples of organisms developing these mutations and becoming immune to long standing answers for control. The book shows the change in Culex pipiens, a mosquito, was traced to a single mutation occurring in the 1960’s which allowed the mosquito to be immune to certain pesticides. This mutation quickly became the dominant variant of the mosquito’s…

When imagining the deadliest animal in the world, the faces that usually come to mind are that of a tiger, a snake, or maybe a shark. However, the most dangerous animal in the world does not have the claws of a tiger, the venom of a snake, or the teeth of a shark. This animal is measured in millimeters, produces hundreds of offspring from a single mother, and feeds off human blood. It is the mosquito. The most common species is culex pipiens, but there are others such as aedes aegypti, aedes…

affected with the virus. “Essentially all patients with neurologic involvement have detectable WNV-specific IgM in CSF; since IgM does not cross the blood-brain barrier, a positive IgM result for CSF reflects intrathecal antibody synthesis, and is thus diagnostic of central nervous system infection”(Prince & Hogrefe, 2004). Blood from mosquitos and birds that are caught in the area of the epidemic can also tested in a lab to acknowledge if they are infected with WNV. The virus made it to the…

killers are of different species, like the Aedes, Culex and Anopheles. Once feeding begins on their host they can easily transmit deadly diseases. Below are a few mosquito-borne diseases quite common in both developing countries and the world at large. Malaria Research reveals that this disease has killed more people than all the wars in the world, combined. It is carried by the female Anopheles mosquito which transmits microscopic parasites (of the genus Plasmodium) from one person to another…

essential oil obtained this compounds Trans-Anethole(68.53%) and estragole (10.02%) were found as a major compounds. Antibacterial assay is performed by MIC and MBC methods from essential oil of fennel against several food-borne pathogens. Especially shigella dysentria was more sensitive to essential oil showing very low value of 0.125mg/ml(MIC) and 0.25mg/ml (MB). Kill-time assay showed essential oil having a significant effect to reduce the following rate of shiqella dysentria. …

What is Heartworm? Heartworm disease is caused by the parasitic roundworm known as Dirofilaria Immitis. A parasite is an organism that lives in or on another organism (its host) and benefits by deriving nutrients at the host's expense. Over 70 species of mosquitos can serve as an intermediate host of which the most common carriers would be the Aedes, Anopheles and Culex. It is commonly diagnosed in dogs but can also affect cats as well as ferrets. Infections are also possible in wild animals…

(20%) and 28 (30%) whereas those for DEPA was 127 (5%), 60 (10%), 55 (20%) and 53 (30%). It was evident that the lowest concentration (5%) of essential oil mixture and DEPA yielded the highest incremental protection of 75 and 127% respectively as compared to DMP. The essential oil mixture was found to provide higher CPT under field conditions than under laboratory conditions, the percent increase in CPT being 15 (5%), 24 (10%), 18 (20%) and 15 (30%). The mosquito biting rate recorded on control…