Trickle-up theory (reverse adaptation) 1  It starts from street fashion to high fashion. 2  Since 1960s designers and manufactures pay more attention to the customers innovations 3  . They watch people on street to find ideas. 4  The âgypsyâ look is a good example of a street look which reached the runway.
Plague. Plague is an infectious disease caused by bacteria called Yersinia pestis. These bacteria are found mainly in rodents, particularly rats, and in the fleas that feed on them.Other animals and humans usually contract the bacteria from rodent or flea bites.ersinia pestis bacteria are found in animals throughout the world, most commonly in rats but occasionally in other wild animals, such as prairie dogs. Most cases of human plague are caused by bites of infected animals or the infected fleas that feed on them.
bubonic plague is one of three types of bacterial infection caused by yersinia pestis three to seven days after exposure to the bacteria flu like symptoms develop this includes fever headaches and vomiting swollen and painful lymph nodes occur in the area closest to where the bacteria entered the skinn the bubonic form of plague the bacteria enter through the skin through a flea bite and travels via the lymphatics to a lymph node causing it to swell diagnosis is by finding the bacterium in the blood sputum or fluid from lymph nodes