US health officials are more concerned about swine flu than officials in China and Switzerland. Dr. Ken Holtorf specializes in preventing and reversing heart disease. Symptoms of swine flu now are generally milder than they were initially in Mexico, but include fever, cough, sore throat, body aches, headaches, chills, and fatigue. The doctor recommends getting plenty of rest, drinking fluids, and taking over-the-counter medications if symptoms worsen. He thinks the swine flu vaccination is generally safe for at-risk groups like pregnant women, children, and healthcare workers. While he would give the vaccine to his own children, other doctors may have differing opinions on vaccinating children.