...protect against infection. 3. Persons reacting weakly or strongly positive usually contain less than '/4o unit of antitoxin per cubic centimeter of serum or...About 40 to 50 per cent. of children ranging from 1 to 15 years of age react positively to the toxin test; this means that the preliminary use of the...

...against infection. Persons reacting weakly or strongly positive usually contain less than one-fortieth of a unit of antitoxin per cubic centimeter of serum...passively immunized with an injection of antitoxin. About 40 to 50 per cent, of children ranging from one to fifteen years of age react positively to the...

...against infection Persons reacting weakly or strongly positive usually contain less than one-fortieth of a unit of antitoxin per cubic centimeter of serum...passively immunized with an injection of antitoxin. About 40 to 50 per cent, of children ranging from one to fifteen years of age react positively to the...

...usually contain less than ya of a unit of antitoxin per cubic centimetre of serum or none at all. They may be regarded as susceptible to diphtheria and in...exposure to infection should be passively immunized with antitoxin injection. 4. About 40 to 50 per cent, of children ranging from 1 to la years of age react...

...protect against infection." "Persons reacting weakly or strongly positively usually contain less than %0 of a unit of antitoxin per cubic centimeter of- serum...exposure to infection should be passively immunized." These authors also find that in children from 1 to 15 years the preliminary use of the toxin test will...

...protect against infection. 3. Persons reacting weakly or strongly positive usually contain less than 1/40 of a unit of antitoxin per cubic centimeter of serum...4. About 40 to 50 per cent of children ranging from 1 to 15 years of age react positively to the toxin test; this means that the preliminary use of the...

...protect against infection. 3. Persons reacting weakly or strongly positive usually contain less than %o of a unit of antitoxin per cubic centimeter of serum...About 40 to 50 per cent. of children ranging from 1 to 15 years of age react positively to the toxin test ; this means that the preliminary use of the...

...protect against infection. 3. Persons reacting weakly or strongly positive usually contain less than Vw of a unit of antitoxin per cubic centimeter of serum...About 40 to 50 per cent, of children ranging from 1 to 15 years of age react positively to the toxin test ; this means that the preliminary use of the...

...Persons reacting weakly or strongly positive usually coutaiu less than ,ljj of a unit of antitoxin per cc of serum or none at all. These persons may be regarded...event of exposure to infection should be passively immunised with an injection of antitoxin. (4) About 40 to 50 per cent, of children ranging from 1 to...