Officials over at Mississippi’s Rankin County are glad that they only had two cases of West Nile virus infection in 2008, which was much less than last year’s 15 cases. And they are pressed in keeping the trend as low as possible. Rankin County’s Emergency Operations Director Bob Wedgeworth said that their goal is to maintain public health as the county and other agencies have been gathering data to determine the mosquito population, as well as screen the collected mosquitoes for any possible v…