VACCINES (1796)
VACCINES (1796)
ANAESTHESIA (1846)
Before the first use of a general anaesthetic in the mid-19th century, surgery was undertaken only as a last resort, with several patients opting for death rather than enduring the excruciating ordeal. Although there were countless earlier experiments with anaesthetic dating as far back to 4000 BC – William T. G. Morton made history in 1846 when he successfully used ether as an anaesthetic during surgery. Soon after, a faster-acting substance called chloroform became widely used but was considered high-risk after several fatalities were reported. Since the 1800s, safer anaesthetics have been developed, allowing millions of life-saving, painless operations to take place.
GERM THEORY (1861)
Before the ‘germ’ theory came about, the widely believed theory was that disease was caused by ‘spontaneous generation’. In other words, physicians of the time thought that disease could appear out of thin air, rather than being air-borne or transferred via skin-to-skin contact. In 1861, French microbiologist Louis Pasteur proved through a simple experiment that infectious disease was a result of an invasion of specific microscopic organisms - also known as pathogens - into living hosts. This new understanding marked a significant turning point in how diseases were treated, controlled and prevented, helping to prevent devastating epidemics that were responsible for thousands of deaths every year, such as the plague, dysentery and typhoid fever.
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