Diseases and their causes pdf

Weight loss, chronic cough, fever, weakness, lack of appetite, etc. Common diseases of tomatoes part ii diseases caused by. Most of the parasites that are found are pathogens as they cause many diseases in humans. Pdf an overview on infectious disease researchgate. When viruses enter our bodies, they can multiply and cause illness. These infections can cause unnecessary suffering for the patient and also. Three principal reasons most often cited for the spread of diseases are poor sanitation, improper management, and introduction of new animals into a herd. The bacteria is spread by sneezing droplets and air. Get a printable copy pdf file of the complete article 197k, or click on a page image below to browse page by page. Mayo clinics highly specialized heart experts diagnose and treat more than 200 heart conditions, including many rare and complex disorders, providing the most appropriate care for you. There are many types, including coronary artery disease, angina, and heart failure.

Infectious causes of chronic inflammatory diseases. Examples of diseases caused by a virus are chickenpox, small pox, measles, polio. In this manual infectious agents which cause infection and illness are called pathogens. One or more of the following defects cause diseases. A disease may be caused by external factors such as pathogens or by internal dysfunctions. A disease is a particular abnormal condition that negatively affects the structure or function of. But the microbe can be latent in humans and can produce disease when the immune system is compromised. According to the centers for disease control cdc, heart disease is the leading cause of death in the united kingdom, united states, canada, and australia. Full text full text is available as a scanned copy of the original print version.

Yield loss results from defoliation and the reduced market value of the specked fruit. Some of the bacterial diseases are syphilis, pneumonia, tetanus. An infection caused by the bacteria salmonella typhi. The evolution of parasitism in todays pathogens proceeded along the. An infection is not synonymous with an infectious disease, as some infections do not. An organism which harbours pathogens in large numbers that do not cause any suffering to it. Pdf guide to common diseases and disorders of parsley. Environmental causes of noncommunicable diseases include.

Objectives on completion of this manual you should have an understanding of. The next category within the original definition is wealth andor the stage of development of a country. List of human diseases caused by bacteria and viruses. Well explain the causes and complications of autoimmune disease and how you can find the. Causes of diseases disease causes body functions to disfunction or function improperly. Pdf in general, the source of infection for human beings is another. Pdf types of human disease by source of the infectious agent. Bacterial speck is a disease of increasing importance. Bacterial pathogens are introduced to new sites on contaminated seed or transplants. Cardiovascular disease affects the heart and blood vessels. Who global burden of diseases report, last published in 2004 and due to be updated with data up to 2010, provides an accepted list of disease causes that can be used at a global level for this type of analysis. Fungal infections include ringworm infection, athletes foot.

If the organism can cause infection, it is an infectious agent. Discussions address each of these infections be cause although they all cause hepatitis, their clinical pictures differ consider ably. This handbook is a pictorial guide to common parsley diseases, however, symptoms can be similar and professional diagnostic testing may be required to identify the cause positively. Some of the bacterial diseases are syphilis, pneumonia, tetanus, and tuberculosis. Infections and infectious diseases whoeurope world health. While leaf wetness is required for both bacterial spot and bacterial speck infection, cooler temperatures 55 f to 77 f favor speck. Most viruses cannot survive very long outside their host cell. Common autoimmune diseases include type 1 diabetes, rheumatoid arthritis, and inflammatory bowel disease.