Daily assignment: How diseases Can Be Spread

Topic : How Diseases Can Be Spread

When people move from one city or country to another, the spread of disease may result. People often bring in germ that may not have been present there before. These new germs can spread quickly and cause previously unknown diseases. If a germ is completely new to a region, people who already live there have no natural protection against it. As result, they become ill more easily and died often. Sometimes, newcomers can catch disease that were not present where they come from. If they go back, they may carry the disease with them and bring about an epidemic there too. Today, the spread of the swain flu is an evidence. It may have started in Mexico a few months ago and today, almost the world population is victimized.
Furthermore, changes in heating systems of building can also lead to disease . In the 1960s, there was a worldwide shortage of heating oil. As result, hotels in the USA lowered the temperature in their heating system in order to save fuel. This lower temperature led to the growth of a deadly germ that grows in heating pipes. When the heated air was blown into the rooms of a hotel, it carried the germs . Many visitors became ill and several died.
Also, the pollution of the oceans can result in the spread of disease. Chemicals from fertilizers and human waste eventually flow into the oceans. These pollutants result in the increase growth of the tiny plants called algae. These plants can provide a home for cholera which is a deadly disease. The infected plants can stick on the ships, which can then carry the cholera disease germs all around the world.
Written by David Lateu