Centuries later, two of the most serious pandemics have occurred: the plague and the COVID.
The plague which occurred about in the fourteenth century, was a devastating epidemic which affected much of the world at the time known.It was caused by a bacterium undermined in the blood of black rats, put into circulation by a particular species of fleas, which absorbed the plague’s bacillus through the blood of rats and transmitted it to those within range. The lack of medical knowledge caused a rapid spread of the virus with disastrous effects.
The COVID-19 instead has occurred since about 2019 ( from which it will then derive its name: Corona Virus Disease 2019). The first outbreaks of this virus occurred in Wuhan, China, where it is thought that the virus originated from bats and then reached humans via a mammal that is widespread in China. The first outbreaks of this virus occurred in Wuhan in China where it is thought that the virus originated from bats and then arrived to humans via a mammal widespread in China.The disease is an infection of the respiratory tract that can evolve towards a dangerous pneumonia with potentially fatal results. Although medical knowledge is very high, the COVID has had catastrophic effects around the world.