Yersin bacillus which is a bacterium that

usually lives inside the stomach of fleas.

Fleas live on rodents especially black

rats where it becomes infected over time,

this then leads to the outbreak of the

black death. as mentioned in the sources,

the plague itself kills 50% of patients,

however, it can also spread in other ways such as through a respiratory system

increasing death rate, the plague was originated in central Asia during the 1200s

Origin

Symptoms

The symptoms of black death began with headaches and later on, followed up with fever. Lumps also knew as buboes would start growing on the neck, underarm, groin and thighs of the victim, the size of the buboes which often became as large as an egg were hard and turned black over time.

Impact On Human

The black death caused a huge impact on humans back then, for example, trading was down for some time due to the plague which brings down the economy as well, meaning more and more people would have to suffer, many labourers died devastating many families for their income. The feudal system was also affected.

Origin

Symptoms

Impact On Human

SARS (Severe Acute Respiratory Syndrome) also known as coronavirus is a virus discovered in 2003, the virus was assumed to be transmitted by animals like bats that spread to other animals especially civet cats however it was uncertain. The first victim was found in Guangdong in 2002.

Symptoms of SARS include fever, malaise, myalgia, headache, diarrhea, and shivering (rigors). Most Severe Victims such as elders would experience Dry Coughs, shortness of breath, and diarrhea in the first or second week of illness.

The 2003 coronavirus didn’t quite create a huge impact on human except for killing the population however, it was researched that some victims might encounter sequela (A condition resulting from a disease) after curing.

How It Spread

The black death was started in central Asia during the 1200s, it lasted from 1345-1350 and was spread by infected rodents and flea bites later expanding between people through the respiratory system or physical contacts.

How It Spread

The epidemic of SARS has affected 26 countries with more than 8000 cases, the spreading of the virus is primarily between people through close contacts as well as a respiratory system such as coughing, the spreading itself often appears to occur in the second week of illness

Different Views Held By People

During the medieval time, some people thought it was a punishment from God as they didn’t really know the biology of the disease while others thought it was from the “bad air” Which was also known as the Miasma theory.

In 2003, it was recorded that some people thought the virus was transmitted mainly from the Chinese while the others thought it was just an animal disease.

Different Views Held By People

Black Death

SARS 

1346 – 1353

2002 – 2004

Humans have encountered and survived several deadly diseases or virus outbreaks that was spread worldwide in the past and present such as smallpox, Spanish flu, COVID-19, Measles, Black Death etc, however, in this infographic I will be mainly comparing two of the deadliest pandemics throughout history.

Pandemics In The Past And Present

In conclusion

Yet both the black death and sars have created tremendous negative impacts ou our society, however, it also helps to further develop and extend  our knowledge on future imminent disease outbreaks

Citations:

(Origin of SARS+symptoms)https://www.businessinsider.com/coronavirus-deaths-how-pandemic-compares-to-other-deadly-outbreaks-2020-4

(Origin of black death, symptoms, how it spread, impact on the human)humanhttps://www.britannica.com/event/Black-Death

(Different view held by people, how it spread) [SARS]https://www.who.int/ith/diseases/sars/en/

https://en.wikipedia.org/wiki/Severe_acute_respiratory_syndrome

(how it spread, origin)

https://www.cdc.gov/sars/about/fs-sars.html

https://www.history.com/topics/middle-ages/black-death

Daniel.Z 7-3