Immunization with inactive vaccnia virus

Adjuvants in Immunization with Influenza Virus Vaccines

Subcutaneous inoculation, of PR8 allantoic fluid, or watery suspensions of the virus obtained from allantoic fluid by high-speed centrifugation or by elution after adsorption on red cells induced serum antibodies in experimental animals, which reached the highest levels within 2 weeks after inoculation and were gradually lost thereafter. The addition of killed acid-fast bacteria (Myco. tubercul...

Immunization Experiments with Swine Influenza Virus

1. Swine influenza virus obtained from the lungs of infected ferrets or mice, when administered intramuscularly or subcutaneously, immunizes swine to swine influenza. 2. Ferrets, which have received subcutaneous injections of swine influenza virus obtained from the lungs of infected ferrets, are immune to intranasal infection with this virus. Similar injections with virus from the lungs of infe...

Immunization against African Horse Sickness with Tissue-Culture-Adapted Neurotropic Virus

Active Immunization of Cattle with Killed Vaccines Prepared from Cell Cultured Rinderpest Virus

Active Immunization of Guinea Pigs with the Virus of Equine Encephalomyelitis I I . Immunization with Formolized Virus

The virus of equine encephalomyelitis appears in the blood in the natural infection of horses before the appearance of clinical symptoms, and epidemiological and experimental findings favor the view that it is disseminated by insect vectors (1), especially the mosquito (2-4). Were immunization attempted by the use of active virus, the danger might arise of bringing about either lethal encephali...