These 10 animal facts will amaze you Communicable disease refers to diseases that can pass from one person to another. Non-communicable diseases occur in one person and cannot be passed on to another person. Communicable diseases are also known as infectious diseases, and non-communicable diseases are referred to as chronic. Communicable and non-communicable disease usually require different treatments.
We all know from experience that the common cold lasts only a few days. Other ailments Communicable and chronic diseases last for a long time, even as much as a lifetime, and are called chronic diseases.
An example is the infection causing elephantiasis, which is very common in some parts of India. Communicable Diseases Microbial diseases that can spread from an infected person to a healthy person through air, water, food or physical contact are called communicable diseases.
Examples of such diseases include cholera, common cold, chicken pox and tuberculosis. Example of a carrier is the female Anopheles mosquito, which carries the parasite of malaria. Female Aedes mosquito acts as carrier of dengue virus.
Many microbial agents can commonly move from an affected person to someone else in a variety of ways. Such disease-causing microbes can spread through the air.
Examples of such diseases spread through the air are the common cold, pneumonia and tuberculosis. Diseases can also be spread through water.
This occurs if the excreta from someone suffering from an infectious gut disease, such as cholera, get mixed with the drinking water used by people living nearby. The sexual act is one of the closest physical contact two people can have with each other.
Not surprisingly, there are microbial diseases such as Syphilis or AIDS that are transmitted by sexual contact from one partner to the other.
Other than the sexual contact, the aids virus can also spread through blood-to-blood contact with infected people or from an infected mother to her baby during pregnancy or through breast feeding.
We live in an environment that is full of many other creatures apart from us. It is inevitable that many diseases will be transmitted by other animals. These animals carry the infecting agents from a sick person to another potential host. These animals are thus the intermediaries and are called vectors.
The commonest vectors we all know are mosquitoes. In many species of mosquitoes, the females need highly nutritious food in the form of blood in order to be able to lay mature eggs. Mosquitoes feed on many warm-blooded animals, including us.
In this way, they can transfer diseases from person to person. Organ-Specific And Tissue Specific Diseases Different species of microbes seem to have evolved to home in on different parts of the body.
In part, this selection is connected to their point of entry. If they enter from the air via the nose, they are likely to go to the lungs. This is seen in the bacteria causing tuberculosis.
If they enter through the mouth, they can stay in the gut lining like typhoid causing bacteria. Or they can go to the liver, like the viruses that cause jaundice. An infection like HIV, that comes into the body via the sexual organs, will spread to lymph nodes all over the body.
Malaria-causing microbes, entering through a mosquito bite, will go to the liver, and then to the red blood cells.
The virus causing Japanese Encephalitis, or brain fever, will similarly enter through a mosquito bite. But it goes on to infect the brain. The signs and symptoms of a disease will thus depend on the tissue or organ which the microbe targets.Preventable communicable, or infectious, diseases like malaria and HIV/AIDS account for millions of deaths in the world each year, especially in low-income countries.
Noncommunicable, or chronic, diseases like heart disease and diabetes are having an increasing effect across the globe. Noncommunicable diseases (NCDs), including heart disease, stroke, cancer, diabetes and chronic lung disease, are collectively responsible for almost 70% of all deaths worldwide.
Almost three quarters of all NCD deaths, and 82% of the 16 million people who died prematurely, or before reaching 70 years of age, occur in low- and middle-income countries. Responding to infectious disease outbreaks and chemical exposures Collecting, analyzing, and reporting statistics on a wide variety of health topics including immunizations, injuries, cancer, diabetes, communicable diseases and HIV/AIDS.
Acute and Chronic Diseases, Communicable Diseases, Organ-Specific Diseases, Principles of Treatment, Principles of Prevention, Diseases in Indian Children. Some important concepts related to diseases from previous posts.
Communicable diseases are caused by germs transmitted through people, animals, surfaces, foods and air. Influenza, or flu, is a highly contagious viral respiratory illness.
Flu can cause a worsening of chronic medical conditions such as heart disease, asthma and diabetes. Diseases and Conditions information from the Centers for Disease Control and Prevention.