Three Ebola Questions

Why it that measles, pneumonia, and cancer are written with a lowercase initial letter, and Ebola is written with an uppercase initial letter?

Why do people complain about being quarantined for possible Ebola when it's a public health issue?

Why is it that Governor Perry wants to keep passengers from Ebola-infected countries from flying into Texas (stopping the plane in mid-air?), but hasn't proposed check points on highways?  And why hasn't he quit flying off to points around the country himself, where he comes in touch with Lord only knows who from Lord only knows where?