In the last decade of the 19th century the chief discoveries were of the bacillus of influenza (1892), of the bacillus of plague (1894) and of the bacillus of dysentery (1898).
Epidemics of influenza and fever have been very prevalent of late years in the central provinces.
An attack of influenza struck him down, and carried him off suddenly after only two days' illness, 10th January 1900.
They were almost exterminated, and an epidemic of influenza in 1839 killed half of those left; ten years later there were only 90 survivors out of a total population of 1200.
Those of the plains find the temperature chilly, and are stricken down with influenza and pains in the limbs.
In 1892 he presided over the Labour Commission, but his health never recovered an attack of influenza which he had in 1891, and he died at Knowsley on the 21st of April 1893.
Similarly, though not with equal precision, the last wave of influenza was shown to have started from central Asia in the spring of 1889, to have travelled through Europe from east to west, to have been carried thence across the sea to America and the Antipodes, until it eventually invaded every inhabited part of the globe (see Influenza).
Typhoid, pneumonia, tuberculosis, measles and scarlatina, and influenza are the commonest illnesses.
An event which caused a deep impression on the public mind was the epidemic of influenza in the autumn of 1918.