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<br /> Hazard Mitigation Plan | 2022 <br />Epidemic/Pandemic/Vector-Borne Disease Hazards <br />- 96 - <br /> <br />start earlier. Such conditions also allow more time for virus amplification in bird-mosquito cycles, <br />increasing the potential for mosquitoes to transmit WNV to people. <br /> <br />The effects of increased temperature are primarily through acceleration of physiological <br />processes within mosquitoes, resulting in faster larval development and shorter generation times, <br />more frequent mosquito biting, and shortening of the incubation period time required for infected <br />mosquitoes to transmit WNV. During periods of drought, especially in urban areas, mosquitoes <br />tend to thrive more due to changes in stormwater management practices. Mosquitoes in urban <br />areas can reach higher abundance due to stagnation of water in underground stormwater systems <br />that would otherwise be flushed by rainfall. Runoff from landscape irrigation systems mixed with <br />organic matter can also create ideal mosquito habitat. Drought conditions may also force birds <br />to increase their utilization of suburban areas where water is more available, bringing these WNV <br />hosts into contact with urban vectors. <br /> <br />Map: West Nile Virus Activity in California Counties <br />(Source: California State Hazard Mitigation Plan, 2018) <br /> <br />Lyme Disease <br />Lyme disease is caused by a spirochete (a corkscrew-shaped bacteria) called Borrelia burgdorferi <br />and is transmitted by the Western black-legged tick. Lyme disease was first described in North <br />America in the 1970s in Lyme, Connecticut, the town for which it was then named. Though the <br /> <br />City Council 26 – 102 1/17/2023 <br />