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STUDIES ON A PARATYPHOID INFECTION IN GUINEA PIGS : II. FACTORS INVOLVED IN THE TRANSITION FROM EPIDEMIC TO ENDEMIC PHASE.
Factors bearing on the maintenance of paratyphoid in an endemic state are discussed. There was no evidence of any increase nor any dearly demonstrable proof of a decline in virulence of the causative organism. This persisted within the breeding stock and it is suggested that the sows constituted the...
| Autores principales: | , |
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| Formato: | Texto |
| Lenguaje: | English |
| Publicado: |
The Rockefeller University Press
1927
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| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2131278/ https://www.ncbi.nlm.nih.gov/pubmed/19869257 |