Officials said Friday that the updated incident status reflects the confirmation of 14 new cases in a single, unnamed institution during the last week of January.
As of Wednesday, officials had confirmed 338 cases of seasonal influenza in Delaware, almost half of them in Kent County.
People aged 5 to 24 accounted for 40 percent of the total cases.
Officials are reminding people that flu vaccine is available and urging residents to frequently wash their hands and cover their mouths and noses when coughing or sneezing.
