The Triassic Period. At the start of the Triassic period, 250 million years ago, the earth was just recovering from the Permian/Triassic Extinction, which witnessed the demise of over two-thirds of all land-dwelling species and a whopping 95 percent of ocean-dwelling species.
Causes. Pertussis, a respiratory illness commonly known as whooping cough, is a very contagious disease caused by a type of bacteria called Bordetella pertussis.These bacteria attach to the cilia (tiny, hair-like extensions) that line part of the upper respiratory system.auses. Pertussis, a respiratory illness commonly known as whooping cough, is a very contagious disease caused by a type of bacteria called Bordetella pertussis.
It was discovered by Belgian immunologist, Jules Jean Baptiste Vincent Bordet and Octave Gengou, a Belgian bacteriologist. They both together worked on Bordetella pertussis bacteria and claimed that it is a cause of whooping cough.The first whooping cough vaccine was produced in 1912 by Octave Gengou.hooping cough or Pertussis is a dangerous impartible bacterial disease. It is caused by âBordetella pertussisâ bacteria. It causes satirical and furious cough.