mortality refers to death, so the mortality rate refers to the number of death over a period of time. Morbidity refers to illness or disease, so the morbidity rate refers to the number of cases of illness or disease over a period of time.
Etiology in medicine is defined as the determination of a cause of disease or pathology. Its influence on the development of civilization can be traced back to several impressive findings, ranging from the germ theory of pathology to the modern understanding of the source of diseases and their control.
A true pathogen is an infectious agent that causes disease in virtually any susceptible host. Opportunistic pathogens are potentially infectious agents that rarely cause disease in individuals with healthy immune systems.
The study of disease is called pathology. It involves the determination of the cause (etiology) of the disease, the understanding of the mechanisms of its development (pathogenesis), the structural changes associated with the disease process (morphological changes), and the functional consequences of those changes.
Pathology is a branch of medical science that involves the study and diagnosis of disease through the examination of surgically removed organs, tissues (biopsy samples), bodily fluids, and in some cases the whole body (autopsy).
The cause or origin of disease(EE-tee-AH-loh-jee) The cause or origin of disease.
synonyms for pathogenantibody.bacterium.bug.disease.microbe.microorganism.virus.parasite.More items...
Pathogen. A microorganism that causes disease.
It states: “An endemic area is one in which over a number of years, these is practically continuous presence of clinical cholera with annual seasonal exacerbation of incidence.”[1] The Dictionary of Epidemiology defines an endemic disease as “the constant presence of a disease or infectious agent within a given ...
(KRAH-nik dih-ZEEZ) A disease or condition that usually lasts for 3 months or longer and may get worse over time. Chronic diseases tend to occur in older adults and can usually be controlled but not cured. The most common types of chronic disease are cancer, heart disease, stroke, diabetes, and arthritis.
lesion, in physiology, a structural or biochemical change in an organ or tissue produced by disease processes or a wound.
Death due to disease is called death by natural causes. There are four main types of disease: infectious diseases, deficiency diseases, hereditary diseases (including both genetic diseases and non-genetic hereditary diseases), and physiological diseases.
Although most people with COVID-19 get better within weeks of illness, some people experience post-COVID conditions. Post-COVID conditions are a wide range of new, returning, or ongoing health problems people can experience four or more weeks after first being infected with the virus that causes COVID-19.
Some people experience a range of new or ongoing symptoms that can last weeks or months after first being infected with the virus that causes COVID-19.
A person of any age who has had COVID-19 can later develop a post-COVID condition. Although post-COVID conditions appear to be less common in children and adolescents than in adults, long-term effects after COVID-19 do occur in children and adolescents.
The best way to prevent post-COVID conditions is to prevent COVID-19 illness. For people who are eligible, getting vaccinated against COVID-19 as soon as you can is the best way to prevent getting COVID-19 and can also help protect those around you.
CDC continues to work to identify how common post-COVID conditions are, who is most likely to get them, and why some symptoms eventually improve for some people and may last longer for other people. Rapid and multi-year studies are underway to further investigate post-COVID conditions in more detail.
For information on supporting people with a post-COVID condition, see the Caring for People with Post-COVID Conditions webpage.