What are the 4 phases in the course of an infectious disease?

To cause disease, a pathogen must successfully achieve four steps or stages of pathogenesis: exposure (contact), adhesion (colonization), invasion, and infection.

What are the 4 stages of infectious disease?

The natural history of an untreated communicable disease has four stages: stage of exposure, stage of infection, stage of infectious disease, and stage of outcome.

What are the 4 C's of control of infectious diseases?

The Starfield 4Cs of primary care—first- contact access, care coordination, comprehensiveness and continuity—offer practical, high-quality design options for non-communicable disease care in low-income and middle-income countries.

What are the 4 disease categories?

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. Diseases can also be classified in other ways, such as communicable versus non-communicable diseases.

What are the 4 causes of infectious diseases?

THE INFECTIOUS DISEASE PROCESS/STAGES OF INFECTION

What is the prodromal stage of infection?

The prodromal period occurs after the incubation period. During this phase, the pathogen continues to multiply and the host begins to experience general signs and symptoms of illness, which typically result from activation of the immune system, such as fever, pain, soreness, swelling, or inflammation.

What are 5 infectious diseases?

What are the 4 types of diseases with examples Class 9?

How many classifications of disease are there?

There are 21 separate categories which encompass all diseases, conditions and areas of health.

What are the various levels of causes of disease?

Two main causes of disease are Immediate cause and Contributory cause: Immediate cause are the organisms that enter our body and cause disease. For Example, viruses, protozoa, bacteria. Contributory causes: These are the secondary factors which lead these organisms to enter our body.

What are the principles of infectious diseases?

Principles of Infectious Diseases: Transmission, Diagnosis, Prevention, and Control - PMC.

What are the 3 methods of infection control?

Infection control standard, contact, droplet and airborne precautions.

What are the basic principles of disease control?

The six fundamental principles of disease management are exclusion, eradication, protection, resistance, therapy, and avoidance of insect vectors and weed hosts. 1. Exclusion means preventing the entrance and establishment of pathogens in uninfested crops in a particular area.

What are stages of infection cycle?

The six links include: the infectious agent, reservoir, portal of exit, mode of transmission, portal of entry, and susceptible host.

What is the first stage in the infectious process?

The five periods of disease (sometimes referred to as stages or phases) include the incubation, prodromal, illness, decline, and convalescence periods (Figure 12.2. 1).

What are the three phases of infection process?

The different phases in infections include: Infective period. Communicability period.

What is classification of a disease?

A classification of diseases may be defined as a system of categories to which morbid entities are assigned according to some established criteria. There are many possible choices for these criteria.

What are the three levels of causes of disease Class 9?

Answer: Immediate cause: The organisms that enter our body and cause the disease are termed as an immediate cause. For example, virus, bacteria, protozoa etc. Contributory cause: The secondary factors which led these organisms enter our body are termed as a contributory cause.

What are the 5 types of health?

There are five main aspects of personal health: physical, emotional, social, spiritual, and intellectual. In order to be considered "well," it is imperative for none of these areas to be neglected. The Health and Wellness Educators (HAWES) want to inform you, the student, of ways to maximize your personal wellness.

What is infectious disease Class 9?

Infectious diseases are diseases that are caused by pathogens and are capable of spreading from a diseased person to a healthy person. Biology. Science for Ninth Class - Part III - Biology. Standard IX.

What is disease process?

The Infectious Disease Process. [last update 11/24/03] The infectious disease process includes the following components: (1) agent (2) reservoir (3) portals of entry and exit (4) mode of transmission (5) immunity. Types of agents range from the submicroscopic to the large parasites.

What is disease Class 9 short answer?

Any condition which impairs the health, or interferes with the normal functioning of the body is called disease.

What are the top 3 infectious diseases?

The world's deadliest infections, including Tuberculosis, Malaria and HIV/AIDS, have been considered as the "Big Three" infectious diseases (BTIDs).

What are the five signs of an infection?

The signs of infection vary according to the organ and site of involvement. Most common symptoms and isgns are fever, chills, rigor, vomitings, diarrhoea, burning urine ,sore throat ,cough, new onset of pain. Inflammation has five cardinal signs which are pain, heat, redness, swelling, and loss of function.

What is the most infectious disease?

Tuberculosis remains one of the world's deadliest infectious diseases, second only to COVID-19, and drug resistant TB strains are still a major concern.