It usually takes 3 to 6 days for a person to get symptoms of hand-foot-and-mouth disease after being exposed to the virus. This is called the incubation period.
Preheat oven to 400 degrees F. Cut off the brown ends of the Brussels sprouts and pull off any yellow outer leaves. Mix them in a bowl with the olive oil, salt and pepper. Pour them on a sheet pan and roast for 35 to 40 minutes, until crisp on the outside and tender on the inside. Shake the pan from time to time to brown the sprouts evenly. Sprinkle with more kosher salt (I like these salty like French fries), and serve immediately.
Directions. Preheat oven to 450 degrees. Bring a medium saucepan of salted water to a boil over high heat. Add Brussels sprouts and cook for 2 minutes. Drain and transfer to a bowl lined with a clean kitchen towel; pat dry to remove any excess moisture. Remove towel and season Brussels sprouts with salt and pepper. Drizzle with olive oil and toss to coat. Transfer to a rimmed baking sheet, placing cut sides down, along with rosemary and garlic. Roast until browned and tender, about 20 minutes.