Studies on Crystal Violet Hog Cholera Vaccine

Modified Live Virus Hog Cholera Vaccine--M.L.V

Studies on the Dissociation of the Hog Cholera Bacillus

1. Heat killed organisms of the MS (OH), MR (ØH), NS (O) or NR (Ø) forms of hog cholera bacilli failed to confer immunity, at least to any considerable degree, in hamsters or rabbits against virulent hog cholera bacilli. 2. Hamsters and rabbits were successfully immunized against virulent MS bacilli by vaccination with living MR (ØH) and NR (Ø) forms. 3. Hamsters were immunized against MS hog c...

Mutation among Hog-cholera Bacilli

1. In the hog-cholera group the mutation from smooth (A) to granular (B) type occurs and a mutant with a moist, opaque colony formation was noted. 2. The B mutant when obtained pure remains a B type without reversion in the stock cultures. 3. The B mutant can be made to assume some of the A characters by rapid successive transplanting in bouillon. 4. The B mutant can usually be found in older t...

Studies on the Potency of Prophylactic Vaccines. 1. Cholera Vaccine

f B. M. PAUL 'o,n the Cholera Bacteriological Enquiry, Indian esca,ch Fund Association, School of Tropical Medicine, Calcutta) Cholera vaccine is extensively used foi Prophylaxis, particularly during epidemics of cholera and in endemic areas of the disease. 1 here are three main sources of cholera vaccine, vaccines prepared by certain recognized oratories, the vaccines prepared by local commerc...

Hog cholera virus: art and facts.

The aim of this review is to summarize the informations accumulated during the two last decades on hog cholera virus, a member of the pestivirus genus. Different aspects concerning the virus-host cell interactions, and the structural and antigenic properties of the virion itself are successively analyzed. Despite numerous works, many basic informations are still lacking, which can be explained ...