Passive--due to the introduction of the blood serum of an actively immunized animal.
In 1898 Richet and Hericourt noticed that some of the dogs which they were attempting to immunize against toxic eel serum not only were not immunized but suffered even more severely after the second injection.
In passive immunity the blood serum of an actively immunized animal is introduced into a second animal, which thereupon becomes immune, though its cells are not concerned in the process.
As was noted above, if animals, rabbits for example, are immunized with the blood of another animal (human beings) precipitins are developed which are specific for the injected blood with proper dilution.
The term active is used because the body cells of the animal immunized perform the real work of bringing about the immunity as will be discussed later.
Wright showed that opsonins for many bacteria are present in normal serum and that in the serum of an animal which has been immunized against such bacteria the opsonins are increased in amount.
Pfeiffer (1894) showed that the destructive power of the blood of animals immunized against bacteria (cholera and typhoid) was markedly specific for the bacteria used.
Charrin and Rogers appear to have been the first (1889) to observe the clumping together of bacteria (Pseudomonas pyocyanea) when mixed with the blood serum of an animal immunized against them.
Various observers had previously found that the serum of an animal immunized against [v.
Immunity against toxins also became a subject of investigation, and the result was the discovery of the antitoxic action of the serum of animals immunized against tetanus toxin by E.
The serum of an animal thus actively immunized has powerful protective properties towards another animal, the amount necessary for protection being sometimes almost inconceivably small.
Certain antitoxic proteins from the serum of a horse properly immunized against tetanus toxin.
Serum from a horse properly immunized against diphtheria toxin; has a potency of not less than 250 antitoxic units per Cc.
Serum from a horse properly immunized against tetanus toxin, dissolved in physiologic solution of sodium chloride.
Certain antitoxic proteins from the blood serum of a horse properly immunized against diphtheria toxin, dissolved in physiologic solution of sodium chloride.
The serum of immunizedanimals possesses preventive and curative properties respecting the effects of typhoid bacilli.
Guinea-pigs immunized against the poison of the scorpion resist perfectly very large doses of the poison.
The immunized animals yield a serum which, mixed with tetanus cultures, renders these innocuous, and which enjoys an antitoxic power that borders on the marvelous.
Wassermann[115] has proposed to extract it from the milk of immunized animals, by first coagulating the milk by rennet in the presence of sodium chloride, filtering, and removing the fat from the clear liquid by means of chloroform.
That patient whom Goodale immunized against horse-asthma who objected to a treatment that had to be taken for the rest of her life, should learn of old King Mithridates the true practice of immunity.
While diphtheria antitoxin is harmless to the diphtheria patient, the serum of the pollen-immunized horse nearly killed the first patient Dunbar tried it on, who happened to be his assistant, a sufferer from hay fever.
It has been noted how Dunbar nearly killed his first patient by injecting the serum of the horse that had been immunized to pollen.
Members of a family in which there is typhoid should be immunizedif the doctor advises it.
Young guinea-pigs, for instance, born of mothers immunized during pregnancy are immune at birth but they lose their immunity in the course of a few weeks.
The same temporary immunity can be produced in the young, in fact, by merely having them nurse from an immunized mother.
Then: “The immunized animal having been slaughtered, the contents of the lymph reservoirs are carefully collected and an aqueous extract is made from the grey cerebral substance, spinal cord and the lymph glands.
Some years ago Sweeny declared that his “Anti-Tubercular Lymph” (as it was then called) was derived from a bullock which had been immunized to tuberculosis.
According to the nature of the substances injected into the former, its serum may be antitoxic, if it has been immunized against any particular toxin, or antibacterial, if against an organism.
The patient may, if he will, take advantage of this fact and be immunized by treatment before the disease has developed.
Those who have not been affected can be immunized the same as those who have been bitten.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "immunized" in a variety of sentences. We hope that you will now be able to make sentences using this word. Other words: immune; insured; intact; protected; safe; secure; undamaged; unharmed; unhurt; unscathed; untouched
