When must parents receive influenza information regarding child care facilities?

Parents must receive influenza information regarding child care facilities during August and September because this timeframe precedes the flu season when children will be returning to school and child care settings. By providing this information at the end of summer, facilities give parents the essential data they need to prepare for the upcoming flu season, allowing them to make informed decisions about vaccinations and preventative measures.

Timing is crucial; by targeting this information distribution just before the flu season kicks in, it ensures that parents are aware of potential health risks and can take proactive steps to protect their children in a communal setting. The other options do not align with the optimal timing for flu information as they fall outside this key period for awareness and preparation.