A Study of Experimental Pertussis in the Young Rat.

A Study of Experimental Pertussis in the Young Rat.
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DOI:
10.2307/4582826
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发表时间:
1939-01-01
影响因子:
3.3
通讯作者:
Ashburn, L. L.
Ashburn, L. L.
中科院分区:
医学4区
文献类型:
--
作者:
Hornibrook, J. W.;Ashburn, L. L.

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Young rats were found satisfactory for experimental inoculation with Haem. pertussis by the intranasal route. The dose, in a volume of 0.05 cc. was delivered by a syringe with a blunt needle into the noses of animals anaesthetized with ether and was repeated if rhonchi were not felt. High mortality was produced by a smaller dose than is necessary for mice, the order of dose being 8.5 million organisms in the case of rats as against 200 million for mice. The rats developed a paroxysmal cough about 8 days after inoculation and those which did not die frequently continued to cough for as long as 60 days. 60-70 per cent., of the animals died before the 9th day and the lesions which are described in detail, consist of an interstitial broncho-pneumonia similar to that observed in mice. The organism can be recovered from the ground-up lungs in a high proportion of cases. J. C. Cruickshank.