Why are humans susceptible to animal diseases?

Over the past 50 years, a series of zoonotic diseases have spread rapidly to humans. Specifically, the great gibbon was the culprit causing the HIV / AIDS crisis in the 1980s, the 2004-2007 bird flu pandemic originated from birds, the 2009 swine flu pandemic was caused by pigs, SARS and Ebola pandemic. derived from bats.

Most animals carry bacteria and viruses that can cause illness. Depending on the infection of the new host and the jump to another species, the pathogens have different evolutionary abilities.

In some cultures, it is thought that eating animal meat will help people have better health. Therefore, a number of markets for the sale of wild meat are developing. The predation of wild meat is also a reason that makes people more susceptible to infectious diseases.

Changes in environment and climate change the environment, habitats, habitats and food of animals. Large and growing cities are becoming habitats for wildlife such as rats, dogs, squirrels, foxes, birds, monkeys, etc.They live in parks and gardens, eat food that children eat. people left behind.

Why are humans susceptible to animal diseases? Picture 1

Normally, wild animals easily adapt to urban living environment because of plentiful food supply. This makes the city space an ideal place for pathogens to evolve.

In cities, the poor often have to do cleaning and sanitation. This work makes them often exposed to the source and the carrier. These poor people may also have weaker immune systems than others due to poor nutrition and having to work in unsanitary conditions. They may not be able to afford adequate medical care if they become ill.

In large, densely populated cities, thousands of people can breathe in the same atmosphere and touch the same surface, causing the new disease to spread quickly.

To limit the spread of animal-to-human pathogens, people need to be aware of which animals may be harmful, should not be exposed or eaten, and improve hygiene and handling practices. waste.

According to experts, in the future people will have to accept the appearance of the disease as a part of life.