MRSA is spread by contact. So, you could get MRSA by touching another person who has it on the skin. Or you could get it by touching objects that have the bacteria on them. MRSA is carried by about 2% of the population (or 2 in 100 people), although most of them aren't infected.
When you do get to the island, Kinect Sports Rivals starts by putting its best foot forward. You're ushered into your new life as a sporting champion with some wake racing--what we might more commonly call jet ski racing.
Along with the main campaign thread, Forza Horizon 2 includes a number of arena battle-type modes a little like Mario Kart. In King you race to collect items, in Infected you avoid contact with infected competitors, and in Showcase Events you race against opponents in planes, air balloons, and helicopters.