Why be especially vigilant about food safety this holiday, according to a doctor [Video]

This Independence Day holiday takes place as record-breaking heat waves have spread across many parts of the U.S. and the world, and the temperatures could be deadly. There’s potential for record-breaking heat and extreme heat risk for portions of the South and Southwest. California is likely to be especially hard hit, with highs passing 110 degrees Fahrenheit in many areas.At the same time, the avian influenza outbreak has spread to cows, raising questions about whether certain foods like milk, eggs and hamburgers remain safe.As I drank lots of water and perspired through high temperatures and humidity at an outdoor concert this week, I thought about safely celebrating the Fourth of July holiday. What about all the grilled meat, burgers and potato salad sitting outside in the heat? How can we stay cool while attending picnics and barbecues during this holiday weekend?Are there additional food safety precautions we should take, given …