Another season for the West Nile Virus is set to begin in Louisiana. There were 18 human cases of the mosquito-borne disease in the bayou state last year. Kyle Moppert, medical entomologist with the Office of Public Health, says they are hoping to only see a handful of cases this year.  West Nile season usually runs from June to September, with peak activity in late July and early August. Moppert says the dry weather should keep mosquito numbers down, but there will be that ocassional downpour of rain that will leave breeding grounds for mosquitoes.