The Mississippi State Health Department says it has identified six more people with West Nile virus.
Three of the new cases are in Bolivar and Coahoma counties, where the virus had not previously been found. Other new cases were found in Hinds and Scott counties.
There are now 28 people in Mississippi infected with the West Nile virus. Fifteen are classified as confirmed and 13 as probable.
The virus has caused no deaths in Mississippi, but five West Nile deaths have been reported in Louisiana, where the number of cases rose to 71 Tuesday. West Nile has been reported in 31 counties in Mississippi in humans, animals and birds.