Search results
Results from the WOW.Com Content Network
The strain of Yersinia pestis responsible for the Black Death, the devastating pandemic of bubonic plague, does not appear to be a direct descendant of the Justinian plague strain. However, the spread of Justinian plague may have caused the evolutionary radiation that gave rise to the currently extant 0ANT.1 clade of strains. [44] [45]
The first plague vaccine was developed by bacteriologist Waldemar Haffkine in 1897. [3] [4] He tested the vaccine on himself to prove that the vaccine was safe.[4] [5] Later, Haffkine conducted a massive inoculation program in British India, and it is estimated that 26 million doses of Haffkine's anti-plague vaccine were sent out from Bombay between 1897 and 1925, reducing the plague mortality ...
Bubonic plague is one of three types of plague caused by the bacterium Yersinia pestis. [1] One to seven days after exposure to the bacteria, flu-like symptoms develop. [1] These symptoms include fever, headaches, and vomiting, [1] as well as swollen and painful lymph nodes occurring in the area closest to where the bacteria entered the skin. [2]
Mortality from bubonic plague today is between 1% and 10%, whereas septicemic plague may have mortality as high as 50% — and if untreated, it's over 90%. Fleas can spread other diseases too
Plague, one of the deadliest bacterial infections in human history, caused an estimated 50 million deaths in Europe during the Middle Ages when it was known as the Black Death.
Inactivated flu vaccines cannot cause influenza and are regarded as safe during pregnancy. [ 96 ] While side effects of the flu vaccine may occur, they are usually minor, including soreness, redness, swelling around the point of injection, headache, fever, nausea, or fatigue. [ 150 ]
Bubonic plague is a variant of the deadly flea-borne disease plague, which is caused by the enterobacteria Yersinia pestis, that devastated human populations beginning in the 14th century. Bubonic plague is primarily spread by fleas that lived on the black rat, an animal that originated in South Asia and spread to Europe by the 6th century. It ...
The Plague of Justinian in AD 541–542 is the first known attack on record, and marks the first firmly recorded pattern of bubonic plague. This disease is thought to have originated in China. [ 19 ] It then spread to Africa from where the huge city of Constantinople imported massive amounts of grain, mostly from Egypt, to feed its citizens.