Communicable diseases are diseases that are spread from one person to another through contact with contaminated objects, surfaces, or fluids. These diseases can be caused by viruses, bacteria, and fungi. Some communicable diseases are serious and others are mild. Regardless of the severity, people should take preventive measures to reduce their risk of contracting these infections.

The majority of infectious diseases are transmitted through bodily fluids, such as blood, or through contact with infected surfaces. People can also contract them through animal bites or insect stings. In addition, communicable diseases are often spread by contaminated food, water, or air. While these are all common sources of infection, many people can also become infected through sexual intercourse.

Communicable diseases are a significant health threat that require surveillance, monitoring, and control. They are typically associated with a wide variety of factors, including socioeconomic conditions, housing and housing-related factors, and environmental and health care-related factors.

Some of the most common communicable diseases include tuberculosis, hepatitis B, syphilis, and the HIV virus. Many of these infections are mild and can be treated without treatment. However, others are very severe and can be life-threatening. To avoid becoming infected, you should always get a flu shot, take anti-fungal medication, and avoid sexual intercourse. You should also learn how to report communicable diseases to the public and your health care provider. This information can help you to keep your family safe.

Aside from the traditional causes of infectious disease, there are a number of non-infectious diseases that affect the human body. For example, obesity, hypertension, and diabetes can all lead to non-infectious diseases. Genetics and age can also affect your risk for these types of illnesses. Non-infectious diseases can also be caused by lack of nutrition, genetics, or other environmental factors.

Other types of infections include parasitic protozoa, which are tiny eukaryotic single-celled organisms that can cause a wide variety of diseases. Some of these protozoa are parasitic and can infect the digestive system, while other kinds can be parasitic and affect the immune system.

Viruses are microscopic pathogens that are able to penetrate the cells of the host and reproduce. Viruses are able to pass the DNA of their parent species to a new host to create a new, unrelated virus. Sometimes, viruses that can’t survive in a host’s cell will cause symptoms.

Bacteria are tiny, single-celled organisms that are generally found on or inside the human body. Bacteria are responsible for many of the functions of the body, such as digestion, respiration, and excretion. Unfortunately, some of these bacteria can also infect other animals, plants, and humans. Several of these bacteria can cause illness in humans, and some of them are developing resistance to antibiotics.

Some of the most important things you can do to prevent infection are to wash your hands and wear gloves when handling contaminated objects and surfaces, and to avoid sexual intercourse. If you do become infected, you should immediately seek medical attention. It’s also important to report the condition to your health care provider and the CPHO.