Show spotted fever continued from page one injection but it is not necessary to vaccinate children too young to be out of lof doors doore unless there i is actual danger that ticks will be brought into the home vaccination of persons giving history of a past rocky mountain spotted fever infection this question sometimes eries arises although there bare are a sew fiew records of second infections which are likely fikely authentic it is probable that the generally held orix lan that there is a long persisting immunity is justified How however evel thus thu far giffords KO apparent reason from fram clinical or standpoints why re recovered cOVeTed persons tsi should hould r act t be vaccinated vaccina ted if they so desire not recommended for therapeutic use the vaccine has been used for the treatment of cases of the highly fatal type without eny any evidence of value in intact it is felt that this type bof case its use isi is unwise supposed favorable results result however have ben baen reported following fol vowing such use against ai the milder types of the disessa dis easa clase but bait no nio conclusive evidence has bas beien been sub th use is not rec orn omm ended mended vaccine Vol following lowing tick bite both lab evidence and reports from physicians indicate that in areas mild maid strains of spotted cf irever ever prevail awl ant the incubation period is over five days there may be a definite of symptoms a shortening of the febrile period and more rapid teco recovery lery in persons who have received the vaccine within a short interval hollowing fallowing fal tol lowing the bite of an infected tick this appears particularly likely if the person conc conceded emed led has been vaccinated vaccina ted during one or mare previus years in such areas therel fore physicians are aire ju in advising that persons per Fians who become tick bitten be immediately distribution of vaccine is distributed from the united states public health service field station at hamilton montana to physicians only since it is di dispensed dispels spens cd wi thuC charge the physicians ans ue fee should eh be for administration only and as nominal no in as circumstances will ipei p ermit mit WM al mckay M D |