Comments. 1  TRAINING: Huskies are stubborn an very smart they will only do things if they know they'll get something out of it, Samoyed are kind of the same but a tad bit easier. COMPANIONSHIP: Husky and Samoyed are about the same HONESTLY every dog is about the same in this category it all depends on how well you train them.
In 1908, Ellerman and Bang demonstrated that certain types of tumors (leukemia of chicken) were caused by viruses. In 1911 Peyton Rous discovered that non-cellular agents like viruses could spread solid tumors. This was termed Rous Sarcoma virus (RSV). Bacteriophages. The most important discovery was that of the Bacteriophage era. In 1915 Twort was working with vaccinia virus and found that the viruses grew in cultures of bacteria. He called then bacteriophage. Twort abandoned this work after World War I. In 1917, D'Herelle, a Canadian, also found similar bacteriophages. Images of viruses
Child with leprosy (1). Mycobacterium leprae, also known as Hansen's Bacillus, was discovered by Doctor Gerhard Armauer Hansen in 1873. Dr. Hansen discovered the bacteria in the nodules of leprosy patients and determined that it was the cause of the leprosy.The disease that M. leprae causes is referred to as leprosy or Hansen's Disease. Since M. leprae is the cause of leprosy it is pathogenic.r. Hansen discovered the bacteria in the nodules of leprosy patients and determined that it was the cause of the leprosy. The disease that M. leprae causes is referred to as leprosy or Hansen's Disease. Since M. leprae is the cause of leprosy it is pathogenic.