Appointments & care. At Mayo Clinic, we take the time to listen, to find answers and to provide you the best care. Respiratory syncytial virus (RSV) is a virus that causes infections of the lungs and respiratory tract.
2015 Hyundai Sonata Eco: Gas Mileage Review. The 2015 Hyundai Sonata Eco is the Korean maker's most fuel-efficient mid-size sedan that doesn't use a hybrid powertrain. And it highlights the two parallel paths that automakers are taking as they work to boost gas mileage ratings to meet steadily rising corporate average fuel economy rules.
The next-closest plug-in hybrid competitor is the Ford Fusion Energi EPA-rated at 19 miles all-electric miles. Hyundaiâs 2016 Sonata plug-in hybrid is expected to deliver 24 miles all-electric miles â so the 2016 Volt more than doubles that.