who is suffering from spina bifida under such subchapter. (b) Spina bifida conditions covered This section applies with respect to all forms and manifestations of spina bifida, except spina bifida occulta. (c) Veteran of covered service in Thailand For purposes of this section, a veteran of covered service in Thailand is any individual, without regard to the characterization of that individual's service, who— (1) served in the active military, naval, or air service in Thailand, as determined by the Secretary in consultation with the Secretary of Defense, during the period beginning on January 9, 1962, and ending on May 7, 1975