Question: What Are The 4 Stages Of Illness?

What are the symptoms of infectious disease?

General signs and symptoms common to a number of infectious diseases include:Fever.Diarrhea.Fatigue.Muscle aches.Coughing..

What helps fight infection in the body?

David Wolfe: 10 Natural Antibiotics That Fight InfectionGarlic. By eating a few cloves of garlic each day, you can effectively fight off all sorts of bacteria, viruses and infections. … Onions. … Grapefruit Seed Extract. … Horseradish. … Vitamin C. … Manuka Honey. … Cinnamon. … Apple-Cider Vinegar.More items…•

What is the infectious 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 causes infectious disease?

Infectious diseases are caused by pathogenic microorganisms, such as bacteria, viruses, parasites or fungi; the diseases can be spread, directly or indirectly, from one person to another. Zoonotic diseases are infectious diseases of animals that can cause disease when transmitted to humans.

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 effective way to prevent infection?

Simply put, yes. Hand washing is the single most effective way to prevent the spread of infections. You can spread certain “germs” (a general term for microbes like viruses and bacteria) casually by touching another person.

What are the 5 most common infectious diseases?

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 stages of infection cycle?

Chain of infectionThe Chain of Infection. … The reservoir. … The portal of exit from the reservoir. … The mode of transmission. … The portal of entry into the ‘host’ … The susceptible host. … The infectious agent.

How long do infectious diseases last?

Most people will be infectious for around 2 weeks. Symptoms are usually worse during the first 2 to 3 days, and this is when you’re most likely to spread the virus.

What is disease process?

Diseases are generally understood to be medical conditions that involve a pathological process associated with a specific set of symptoms. Localized diseases affect specific parts of the body; disseminated diseases spread to other parts of the body; and systemic diseases affect the entire body.

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 are the worst bacterial infections?

10 most dangerous antibiotic-resistant bacteriaPseudomonas aeruginosa.Clostridium difficile. … Klebsiella pneumoniae. First Documented: 1886. … Escherichia coli (E. coli) … Acinetobacter baumannii. First Documented: 1911. … Mycobacterium tuberculosis. First Documented: 1882. … Neisseria gonorrhoeae. First Documented: 1885. … Streptococcus pyogenes. First Documented: 1884. … More items…•

What are the 4 stages of communicable illness?

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 is the clinical stage of a disease?

Clinical disease: A disease that has recognizable clinical signs and symptoms, as distinct from a subclinical illness, which lacks detectable signs and symptoms. Diabetes, for example, can be a subclinical disease for some years before becoming a clinical disease.

How do you break an infection cycle?

Break the chain by cleaning your hands frequently, staying up to date on your vaccines (including the flu shot), covering coughs and sneezes and staying home when sick, following the rules for standard and contact isolation, using personal protective equipment the right way, cleaning and disinfecting the environment, …

Are all infectious diseases?

Infectious diseases are caused by microscopic germs (such as bacteria or viruses) that get into the body and cause problems. Some — but not all — infectious diseases spread directly from one person to another. Infectious diseases that spread from person to person are said to be contagious.

What is the acute stage of an illness?

Acute illnesses generally develop suddenly and last a short time, often only a few days or weeks. Chronic conditions develop slowly and may worsen over an extended period of time—months to years.

What is a clinical illness?

Clinical disease: A disease that has recognizable clinical signs and symptoms, as distinct from a subclinical illness, which lacks detectable signs and symptoms. Diabetes, for example, can be a subclinical disease for some years before becoming a clinical disease.

How can I tell if I have a strong immune system?

Your body shows signs of a strong immune system pretty often. One example is when you get a mosquito bite. The red, bumpy itch is a sign of your immune system at work. The flu or a cold is a typical example of your body failing to stop the germs/bacteria before they get in.

What happens during an infection?

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

How many steps are there in the chain of infection?

No matter the germ, there are six points at which the chain can be broken and a germ can be stopped from infecting another person. The six links include: the infectious agent, reservoir, portal of exit, mode of transmission, portal of entry, and susceptible host.

How long does it take a virus to pass?

The virus usually enters your body 1 to 4 days before you have any symptoms, and you can give it to someone a day before you feel anything up to 5 to 7 days after. And kids are contagious even longer. They can spread the virus for another week.

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 the incubation period for viruses?

An incubation period is the time between when you contract a virus and when your symptoms start. Currently, according to the Centers for Disease Control and Prevention (CDC) , the incubation period for the novel coronavirus is somewhere between 2 to 14 days after exposure.

What are the five signs of an infection?

Know the Signs and Symptoms of InfectionFever (this is sometimes the only sign of an infection).Chills and sweats.Change in cough or a new cough.Sore throat or new mouth sore.Shortness of breath.Nasal congestion.Stiff neck.Burning or pain with urination.More items…

What are the 5 stages of disease?

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 can I expect from an infectious disease doctor?

The role of an infectious disease specialist is to review a patient’s medical data, including records, X-rays and laboratory reports. They may perform a physical examination, depending on the type of problem. Laboratory studies are often necessary and may include blood studies and cultures of wounds or body fluids.

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.

Is there any disease caused by kissing?

Kissing can transmit many germs, including those that cause cold sores, glandular fever and tooth decay. Saliva can transmit various diseases, which means that kissing is a small but significant health risk.