tle good. Betumn of 1918 and spring of toll in Britain h similar numbers dead in France and Germany.

    No one knooll, as records in ten poor, but it less timates  total as high as 100 million.

    In an attempt to devise a vaccine, medical auties conducted tests on volunteers at amilitary prison on Deer Island in Boston tery of tests. tests o say t. First ts ed ed lung tissue taken from tious aerosols. If till failed to succumb, ts saken from to sitopen-moutim heir faces.

    Out of—someeered, tors cy-tests. None contracted t one. tor, ion for t teers, all of ation, ural immunity.

    Muc tood poorly or not at all. One mystery is  eruptedsuddenly, all over, in places separated by oceans, mountain ranges, and ots. A virus can survive for no more tside a  body, so  appear in Madrid, Bombay, and Phe same week?

    t it ed and spread by people oms or none at all. Even in normal outbreaks, about 10 percent of people  are una because ts. And because tion tend to be t spreaders of the disease.

    t  for tbreak’s ribution, but it still doesn’texplain  managed to lay loing so explosively at moreor less time all over. Even more mysterious is t it ating topeople in t on infants and t in tbreak deaties and ties. Olderpeople may ed from resistance gained from an earlier exposure to train,but  mystery of all is . e still have no idea.

    From time to time certain strains of virus return. A disagreeable Russian virus kno againin t  in time eacime is uncertain. One s