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The nature of the toxic principle of the scarlet fever streptococcus for rabbits


, : The nature of the toxic principle of the scarlet fever streptococcus for rabbits. Proc Soc Exp Biol & Med 23(8): 850-853

Rabbits were found to be entirely refractory to Berkfeld filtrates of actively growing cultures of Streptococcus scarlatinae. The authors then injected saline washings of blood agar cultures of this organism intraperitoneally into rabbits previously immunized by repeated subcutaneous injections of this organism. The peritoneal fluid collected 3 hours later showed that complete lysis had occurred. This fluid was filtered and tested for toxicity on normal rabbits. The resulting signs and symptoms of toxemia included high leucocytosis, a temperature of about 107[degree]C, and in some animals death occurred in 3-5 days. Intradermal injections of the lysate produced marked local inflammatory reactions. Post mortem examination revealed a congested condition and degenerative changes in the internal organs.

US$19.90

DOI: 10.3181/00379727-23-3201


Other references

Savage, V.M., 2004: Improved approximations to scaling relationships for species, populations, and ecosystems across latitudinal and elevational gradients. Historically, allometric equations relate organismal traits, such as metabolic rate, individual growth rate, and lifespan, to body mass. Similarly, Boltzmann or Q(10) factors are used to relate many organismal traits to body temperature. Allometri...

Kvasnikov, E.I.; Nagornaia, S.S.; Shchelokova, I.F., 1979: Schwanniomyces ukrainicus nov. sp. Mikrobiologicheskii Zhurnal 41(1): 3-5

Costa, R.; Fernandes, E.S.; Menezes-de-Lima, Oávio.; Campos, M.M.; Calixto, Jão.B., 2006: Effect of novel selective non-peptide kinin B(1) receptor antagonists on mouse pleurisy induced by carrageenan. Two novel selective non-peptide kinin B-1 receptor antagonists, the benzodiazepine antagonist and SSR240612, were evaluated in carrageenan-induced mouse pleurisy. The peptide 8715 (0.5 mg/kg, i.p.) and the non-peptide benzodiazepine (3 mg/kg, i.p...

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Meyners, M., 2007: Proper and improper use and interpretation of Beta-binomial models in the analysis of replicated difference and preference tests. For the analysis of replicated difference and preference tests, the Beta-binomial (BB) model is frequently used in order to account for possible heterogeneity of the assessors. For two-sided tests, this approach can be quite useful. We argue, howe...

Rao, S.; Torke, N.S.; Tahir, Z.; Rangaraj, S.; Mathew, L.; Mason, E.; Pyati, S.; Patel, A.R., 1993: Hemoglobin F abnormality in infants exposed to cocaine in utero. Blood 82(10 SUPPL 1): 474A

Jitendra Singh; Dhankhar, B.S., 1991: Effect of nitrogen, potash and zinc on storage loss of onion bulbs (Allium cepa L.). In trials conducted in 1981-82, onion cultivars Pusa Red and Hisar-2 growing in the field received different rates of N, K and Zn. After harvest, bulbs were stored in cloth bags under ambient conditions. Observations on storage quality were made a...

Celesti, A.; Maria, F.; Romano, A.; Bramanti, A.; Bramanti, P.; Villari, M., 2017: An OAIS-based Hospital Information System on the Cloud: Analysis of a NoSQL Column-Oriented Approach. The Open Archive Information System (OAIS) is a reference model for organizing people and resources in a system, and it is already adopted in care centers and medical systems to efficiently manage clinical data, medical personnel and patients. Arc...

Betlheim, S.; Blazevic, D.; Bec, D.Orzak, M.; Bucan, N.; Cividini, E., 1963: Effect Of Physical Injuries On The Etiology And Structure Of Neuroses. Neuropsihijatrija 11: 143-149