Review of Literature Vector Control: Insecticide: “An insecticide is a substance used to kill insects” (IUPAC, 2006). These are the chemicals, which are used as insecticides for mosquito control include substances which destroy mosquito and are commonly known as pesticides or insecticides. If used against mosquito larvae, such insecticides are known as larvicides. A suitable larvicide should have rapid and persistent action in different kinds of water where mosquitoes breed such as polluted and brackish water as well as freshwater. If used against the adult mosquitoes they are known as adulticides.
aegypti and A. albopictus in tropical region. In most cases, it is spread through the Aedes aegypti mosquito in tropical and subtropical regions, while Aedes albopictus mosquito transmits the virus to the regions with cooler temperatures.  They prefer to live indoors and outdoors near people. These mosquitoes lay eggs in or near standing water. The examples are flower pots and animal dishes.
Primary infection occurs in epithelial cells leading to a skin rash and fever as a phenotype. When virions spread to adjacent sensory neurons, a lifelong infection is established (Owen, Crump, & Graham, 2015). Both primary and secondary diseases have a significant morbidity and mortality but thanks to advances in diagnostic and the production of vaccines, it is possible to decrease their burden (Gershon, 2013). 1.1 Varicella:
The pathogenic species of Leptospira and Brucella, their pathogenesis and symptoms of the infections in the animals and humans is highlighted. The importance of early detection of this disease so as to enable immediate treatment is iterated as the symptoms are indistinguishable from other diseases. The different methods of diagnostis available for the detection of Leptospira and Brucella and the advantage and disadvantages
The clinical signs and manifestations (e.g., fever, headache, nausea, and muscle aches) resemble many other diseases during the early stages when antibiotic treatment has more effect. A history of exposure to the appropriate vector tick, louse, flea, or mite is helpful but we cannot base our work upon it. Observation of a rash, which usually appears on or after day 3 of illness, should suggest the possibility of a rickettsial infection but, of course, may occur in many other diseases also. Knowledge of the geographic epidemiology of rickettsioses is useful, but is inconclusive for the individual patient. Except for epidemic louse-borne typhus, rickettsial diseases strike mostly as isolated single cases in any particular neighborhood.
A microorganism is capable of causing diseases, this also known as a pathogen, is what begins with a host. The reservoir host is any living thing that is capable of sustaining growth of a pathogen such as a human, animal and/or an insect. Allowing this microorganism to invade any of the bodies, it can cause an infection to the body
First, they can be infected with disease agents such as bacteria or viruses which will be transmitted to the human targets (Pate and Cameron, 2003). Secondly, the arthropods can be used to attack crops and livestock so as to cause crop destruction which leads to severe economic loss and starvation etc. For example, insects such as Eastern Lubber grasshoppers could either directly feed on the cultivated crops or cause an infection to the crops (vectors). Thirdly, the stinging insects such as bees and wasps etc. could be used to directly torment the targeted population.
2. Distinguish between infectious and non-infectious diseases providing examples of each. (Approx. ½ page) Infectious: - Caused by Pathogenic microorganisms (germs), bacteria, viruses, fungi or parasites. - Passed in direct and indirect transmission.