However, this is only one hypothesis among many; no theory, as yet, encompasses the whole range of phenomena to be seen in autism.
"This could be a mutated SARS corona virus that has lost virulence, and that is the favorite hypothesis among many people," Dr. David Patrick, director of epidemiology at the British Columbia Center for Disease Control, told reporters.
That absence (really one of substance) is accompanied by the widespread hypothesis among Europeans that Obama feels he has more important things to do with his time.
He found a receptive audience for his "diet-heart hypothesis" among public-health experts who faced a growing emergency: heart disease, a relative rarity three decades earlier, had skyrocketed to be a leading cause of death.
A major difficulty with this hypothesis, among various other problems, is that atomic masses 5 and 8 are unstable, and there is no known way to build heavier nuclei by successive neutron capture.
The same year, a news article began, "There has been spreading for some time an idea or hypothesis among the more philosophic medical men, and among the thoughtful 'laity,' that many species of disease have their sources in, and are scattered by, seeds or germs".
