What Are The 4 Stages Of Communicable Illness?

What are the 4 most common communicable diseases?

Communicable diseasesInfluenza.

Norovirus.

Mumps.

Tuberculosis.Pertussis.

Zika virus.

West Nile virus.Ebola.

Chikungunya virus.

Coronavirus (COVID-19).

What are the five stages of infectious disease quizlet?

Terms in this set (5)incubation period. (1) silence stage time between infection and the appearence of signs and symptoms of the disease.prodromal phase. (2) pathogens begin to invade tissues.invasive phase. … decline phase. … convalescence phase.

What are the three factors of the epidemiological triangle?

The epidemiologic triangle is made up of three parts: agent, host and environment.

What is the incubation stage of infection?

Incubation period: In medicine, the time from the moment of exposure to an infectious agent until signs and symptoms of the disease appear. For example, the incubation period of chickenpox is 14-16 days. In biology, the incubation period is the time needed for any particular process of development to take place.

How long does it take to get over a viral infection?

In general, healthy people usually get over a cold in 7 to 10 days. Flu symptoms, including fever, should go away after about 5 days, but you may still have a cough and feel weak a few days longer. All your symptoms should be gone within 1 to 2 weeks.

What are the 5 stages of communicable diseases?

The five periods of disease (sometimes referred to as stages or phases) include the incubation, prodromal, illness, decline, and convalescence periods (Figure 2). The incubation period occurs in an acute disease after the initial entry of the pathogen into the host (patient).

What are the four stages of a new infectious disease quizlet?

4 stages of infectious diseaseIncubation.prodromal Stage.Acute Stage.Convalescent stage.

What stage of infection is most communicable?

In some cases, a person is contagious during the incubation period, while in others the person is not contagious until the illness begins. The amount of time a child remains contagious depends on the infection and the child. Young children are often contagious for longer than older children.

What is the most common virus in humans?

The most common type of viral disease is the common cold, which is caused by a viral infection of the upper respiratory tract (nose and throat). Other common viral diseases include: Chickenpox. Flu (influenza)

What is the most rare disease?

Five rare diseases you never knew existedStoneman Syndrome. Frequency: one in two million people. … Alice In Wonderland Syndrome (AIWS) Frequency: currently unknown. … Hutchinson-Gilford Progeria Syndrome (HGPS) Frequency: one in four million. … Alkaptonuria. Frequency: one in one million people globally. … Chronic Focal Encephalitis (Rasmussen’s Encephalitis)

How do diseases cause symptoms?

Infection occurs when viruses, bacteria, or other microbes enter your body and begin to multiply. Disease occurs when the cells in your body are damaged as a result of infection and signs and symptoms of an illness appear.

What disease has the shortest incubation period?

Incubation Period of Common DiseasesAdenovirus – 2 to 14 days, leading to a sore throat, fever, and pink eye.Vomiting after exposure to Bacillus cereus, a type of food poisoning – 30 minutes to 6 hours (very short incubation period)Clostridium tetani (Tetanus) – 3 to 21 days.Chickenpox – 10 to 21 days.More items…

What is the most common infection in the world?

The 5 Most Common Infectious DiseasesHepatitis B. According to current statistics, hepatitis B is the most common infectious disease in the world, affecting some 2 billion people — that’s more than one-quarter of the world’s population. … Malaria. … Hepatitis C. … Dengue. … Tuberculosis.

What are the three modes of disease transmission?

Modes of transmissionDirect. Direct contact. Droplet spread.Indirect. Airborne. Vehicleborne. Vectorborne (mechanical or biologic)

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 are the four stages of natural history of disease?

Events that occur in the natural history of a communicable disease are grouped into four stages: exposure, infection, infectious disease, and outcome (see Figure 1.6). We will briefly discuss each of them in turn.

What is disease pattern?

The resulting rate allows epidemiologists to compare disease occurrence across different populations. Pattern refers to the occurrence of health-related events by time, place, and person.

What is the most common means of transmission of infectious diseases?

Contact transmission is the most common form of transmitting diseases and virus. There are two types of contact transmission: direct and indirect. Direct contact transmission occurs when there is physical contact between an infected person and a susceptible person.