Health expert shares mosquito repellent tips and DEET usage guidelines

The City of Missoula held a government meeting on May 28, 2025, focusing on public health concerns regarding the West Nile Virus, particularly in relation to mosquito control and prevention strategies. The meeting addressed essential precautions residents should take to protect themselves from mosquito bites, which are the primary vectors for the virus.

The discussion began with an emphasis on the importance of using insect repellents, specifically those containing DEET (N,N-diethyl-meta-toluamide). Participants were advised on the proper application of repellents, highlighting that DEET is the most effective ingredient for repelling mosquitoes. It was noted that the effectiveness of DEET varies with concentration; adults can use products with concentrations ranging from 30% to 50%, while children aged 2 to 12 should use products with less than 10% DEET. Importantly, DEET should not be applied to children under the age of 2.

The meeting also covered the peak activity times for mosquitoes, which are primarily from dusk until dawn. Residents were encouraged to wear long sleeves and pants and to apply repellent to exposed skin, particularly on the face, neck, and hands. For infants, it was recommended to use netting on strollers and car seats to provide additional protection.

In addition to personal precautions, the discussion included measures to prevent mosquitoes from entering homes. Participants were urged to ensure that window and door screens are intact and to eliminate standing water around properties, as these are breeding grounds for mosquitoes.

The meeting concluded with a reminder for residents to wash off repellents upon returning indoors and to avoid applying them near food or inhaling them. The overall message was clear: taking proactive steps can significantly reduce the risk of West Nile Virus transmission in the community.