It was formally recognised as an individual entity in 1881, at the International Congress of Medicine in London. In 1914, Alfred Fabian Hess theorised that rubella was caused by a virus, based on work with monkeys. as cited by In 1938, Hiro and Tosaka confirmed this by passing the disease to children using filtered nasal washings from acute cases.
It was for!mally recognised as an individual entity in 1881, at the! International Congress: of Medicine in London. In 1914, Alfred Fabian Hess theorised that rubella was caused by a virus, based on work with monkeys. as cited by? In 1938, Hiro and Tosaka confirmed this by passing the disease to children using filtere.d nasal washings from acute cases.