A. That depends on whether it is bubonic plague or lung pest. In one, namely, bubonic plague, the mortality can be as high as sixty or seventy percent. It also can be lower. In lung pest, the mortality is just about one hundred. Q. How many people died in Dr. Strong’s plague experiments? A. According to what his reports say, none of them died, but this result could not have been anticipated because this was the first time that anyone had attempted to inoculate living plague virus into human beings, and Strong said in his first publication in 1905 that he himself was surprised that no unpleasant incidents occurred and that there was only severe fever reaction. That despite this unexpectedly favorable outcome of Strong’s experiments the specialists had considerable misgivings about this procedure can be seen first of all from publications where that is explicitly stated; for example, two Englishmen say that, contrary to expectations, these experiments went off well but nevertheless this process cannot be used for general vaccination because there is always the danger that, through some unexpected event, this strain again becomes virulent. Moreover, from other works that Strong later published it can be seen that guinea pigs and monkeys that he vaccinated with this vaccine died not of the plague, but of the toxic affects of the vaccine. All these difficulties are the reason why this enormously important discovery which Koller and Otto made in 1903, and Strong in 1905, has only been generally applied, for all practical purposes, since 1926. That is an indication of the care and fear with which this whole matter was first approached, and Strong could not know ahead of time that his experiments would turn out well. I described here the enormous concern that Strong felt during all these months regarding the fact that that might happen which every specialist feared, viz., that the virus would become virulent again. That is an enormous responsibility. Q. Be that as it may, nobody died. That is a fact, isn’t it? A. If anyone did die, the publications say nothing about it. There were deaths only among the monkeys and guinea pigs that are mentioned in the publication. If human beings died, there is no mention in the publication. It is generally known that if there are serious accidents in such experiments as this, they are only most reluctantly made public. Q. Now, Professor, I have no wish to limit you but, as I understand it, you have explained these things in considerable detail during the four days in which you have already testified. If you can give a short answer to my question that is all I want. If I want any further explanation I’ll ask you for it. Now, what is the normal death rate in beri-beri? A. That depends on the medical care given. If the care is good, the mortality is zero, and if they have no medical care at all, then a lot of them die. Q. Sixty to eighty percent would probably die if they were not treated. Is that right?