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Edwin Klebs was the first to observe bacteria in the airways of persons having died of pneumonia in 1875. [153] Initial work identifying the two common bacterial causes, Streptococcus pneumoniae and Klebsiella pneumoniae , was performed by Carl Friedländer [ 154 ] and Albert Fraenkel [ 155 ] in 1882 and 1884, respectively.
He also first described thromboangiitis obliterans. [ 2 ] Edwin Klebs had seen bacteria in the airways of individuals who died from pneumonia in 1875; however, it was not until 1882 when Friedländer recognized that bacteria ( Klebsiella pneumoniae ) were nearly always observable in persons dying from pneumonia that the bold statement was made ...
Alleged first known AIDS death in the United States Robert Lee Rayford [ 1 ] (February 3, 1953 – May 15, 1969), [ 2 ] sometimes identified as Robert R. due to his age, was an American teenager from Missouri who has been suggested to represent the earliest confirmed case of HIV/AIDS in North America.
In 1881, the organism, known later in 1886 as the pneumococcus [10] for its role as a cause of pneumonia, was first isolated simultaneously and independently by the U.S. Army physician George Sternberg [11] and the French chemist Louis Pasteur. [12]
Griffith's experiment discovering the "transforming principle" in Streptococcus pneumoniae (pneumococcal) bacteria.. Griffith's experiment, [1] performed by Frederick Griffith and reported in 1928, [2] was the first experiment suggesting that bacteria are capable of transferring genetic information through a process known as transformation.
Since pneumonia can take a dangerous turn, it's important to know the earliest signs of it. Dr. Zweig says that, typically, pneumonia starts as a regular viral upper respiratory infection.
It was discovered that the pneumococcus's capsule made it resistant to phagocytosis, and in the 1920s it was shown that an antibody specific for capsular polysaccharide aided the killing of S. pneumoniae. In 1936, a pneumococcal capsular polysaccharide vaccine was used to abort an epidemic of pneumococcal pneumonia.
M. pneumoniae is a human pathogen that causes the disease Mycoplasma pneumonia, a form of atypical bacterial pneumonia related to cold agglutinin disease. It is one of the smallest self-replicating organisms and its discovery traces back to 1898 when Nocard and Roux isolated a microorganism linked to cattle pneumonia.