Highly probable suppositions have been given.

The hurricane transport of VEE and others—perhaps dengue—is new. NS migratory birds do not explain the speed of SN epidemics, because these virus outbreaks likely occur in late summer. Occasional mountains reaching to over 4,000 m do not completely impede hurricane-carried organisms.

The first publication of human Vital Statistics for Mexico was in 1973, but VEE was not mentioned ! In part, physicians never developed the high index of suspician apparently needed for the proper diagnosis of VEE in thousands of infected humans. Many other complications in the 1970s were present, including poor record keeping. A very important issue is the winds. They are little known in the Pacific and the Caribbean (Gulf of Mexico) in terms of epidemiology. Dengue and other viruses are sometimes involved, yet dengue is usually considered blockbound in cities.