There are different kinds of diseases in the world. However, contagious diseases also known as infectious diseases are considered to be the most dangerous of all because they can spread rapidly from one person to another. Contagious diseases spread if the person comes in contact or close to the person who is suffering from any kind of diseases that can spread through air or personal touch. Although most of the contagious diseases are not considered as life threatening they do have the capability to damage your body for quite a time. One of the most common contagious diseases that we have known is the common cold because it can spread from one person to another quickly, but it can be cured as well.
Many people believe that contagious diseases spread only through air and personal contact but there are many contagious diseases that also spread through exchange of body fluids like blood and saliva. Most of the respiratory diseases like meningitis can be cured easily, but they can spread in the family or in the locality through coughing, sneezing and even through spitting in the open area. Hence, the best way to prevent contagious diseases is to keep your environment and yourself clean.
Even various gastrointestinal diseases are considered as contagious diseases because they can spread to a lot of people through food and water. Hence, you should be sure about the kind of food you are eating outside to keep yourself away from contagious diseases. Sexually transmitted diseases are also considered as contagious diseases because they spread through body fluids and saliva.
Contagious diseases spread quickly because they have pathogens that can spread quickly from one body to another and can multiply faster.
Although, cleanliness does play an important role in the prevention of contagious diseases but other factors like immunity strength can also play an important role in the spread of these contagious diseases. These contagious diseases can spread overnight and can affect hundreds of people instantly. As per the World Health Organization contagious diseases like lower respiratory infections, HIV AIDS, diarrhea, malaria and tuberculosis are some of the most dangerous contagious diseases that have nearly killed 16 million people worldwide in the last decade.
