Campaign Against Poliomyelitis.
—In a memorandum to the government, the Swedish Ministry of Health has drawn attention to the prospect of outbreaks of poliomyelitis in the near future and to means for dealing with them. It is feared that, owing to the declining immunity to poliomyelitis, there is a serious risk of severe epidemics in Sweden in the autumn of 1953 or 1954. Provided the dosage of gamma globulin is adequate, it can be counted on to provide some, though not absolute, immunity that lasts at best only five weeks. It is calculated that Sweden can produce not more than 3,000 to 4,000 protective doses from blood and not more than 6,000 to 7,000 such doses from placentas. This prophylactic treatment should be repeated at least three times during each season, if between 4 and 5 million potential patients are to be given adequate protection. But, at present, it is