[1] His passing was described as the end of "an era which saw the elucidation of the malaria vectors of the Philippines and great progress made in the control of a disease which had accounted for as many as 2,000,000 cases annually in those islands.
His taxonomic studies of 71 new species dating back to 1927 enhanced the development of mosquito systematics and established the knowledge base for these winged vectors of the highly infectious tropical disease, malaria.
[3] The first Filipino to be trained as a malaria technician by the International Health Division of the Rockefeller Foundation, Baisas later was employed as an entomologist by the US Army's 3rd General Medical Laboratory and the Philippine's Institute of Malariology under whose auspices he conducted most of his life work.
A tireless researcher, he continued his work even in retirement, establishing his now defunct Baisas Entomological Research Laboratory in the backyard of his home in Pasig, a Manila suburb, where he wrote his perhaps most voluminous publication, the scrupulously illustrated, 300-page downloadable book entitled The Mosquito Fauna of Subic Bay Naval Reservation,[6] published in the early 1970s, which details the taxonomy of some 90 mosquito species and subspecies in this area alone.
He was born in the Philippines in the arts-and-crafts town of Paete, Laguna on June 4, 1896, the younger of two children of Lorenzo Baisas, a farmer who tilled his own land, and his wife Juana Edlagan.