What Does It Mean To Have An Infectious Disease?

What are the 5 major types of infectious agents?

There are five major types of infectious agents: bacteria, viruses, fungi, protozoa, and helminths.

In addition, a new class of infectious agents, the prions, has recently been recognized..

Why would you be referred to an infectious disease doctor?

Reasons your GP may refer you to an ID physician include: Infections that are resistant to treatment (e.g. antibiotics) Difficult to diagnose infections. Infection with an associated high fever.

How do doctors know if you have a viral or bacterial infection?

Diagnosis of Bacterial and Viral Infections But your doctor may be able to determine the cause by listening to your medical history and doing a physical exam. If necessary, they also can order a blood or urine test to help confirm a diagnosis, or a “culture test” of tissue to identify bacteria or viruses.

What are the 6 modes of transmission?

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

What are the 3 main ways infection can get into the body?

Infectious diseases are caused by organisms (germs) such as bacteria, viruses, fungi or parasites….Germs can spread from person to person through:the air as droplets or aerosol particles.faecal-oral spread.blood or other body fluids.skin or mucous membrane contact.sexual contact.

What diseases are spread through bodily fluids?

Examples of diseases spread through blood or other body fluids:hepatitis B – blood, saliva, semen and vaginal fluids.hepatitis C – blood.human immunodeficiency virus (HIV) infection – blood, semen and vaginal fluids, breastmilk.cytomegalovirus (CMV) infection – saliva, semen and vaginal fluids, urine, etc.More items…

What is the leading infectious disease?

Tuberculosis is now the leading infectious disease threat in the world, killing more people than HIV/AIDS, as reported today by the World Health Organization. This should erase any semblance of doubt that we need increased resources and new tools to address the global pandemic.

What are the five signs of 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…

How can infectious diseases be prevented?

Preventing the Spread of Infectious DiseasesWash your hands often. … Get vaccinated. … Use antibiotics sensibly. … Stay at home if you have signs and symptoms of an infection. … Be smart about food preparation. … Disinfect the ‘hot zones’ in your residence. … Practice safer sex. … Don’t share personal items.More items…

What are 5 diseases caused by bacteria?

Bacterial diseaseBacteria.Infectious disease.Cholera.Leprosy.Tuberculosis.Plague.Syphilis.Anthrax.More items…

What is the other name of infectious disease?

Infectious diseases, also known as infectiology, is a medical specialty dealing with the diagnosis and treatment of complex infections.

What is an infectious disease definition?

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 is the main cause of infectious disease?

Infectious diseases are disorders caused by organisms — such as bacteria, viruses, fungi or parasites. Many organisms live in and on our bodies. They’re normally harmless or even helpful. But under certain conditions, some organisms may cause disease.

What is infectious disease Class 9?

Infectious diseases are the diseases caused by various pathogenic microorganisms such as virus, bacteria, protozoan, fungi, and other parasites. These infectious diseases can be transmitted by animals, humans, insects or other agents.

What is the most common infectious disease in the United States?

Viral hepatitis, influenza, and tuberculosis (TB) remain among the leading causes of illness and death in the United States and account for substantial spending on the related consequences of infection.

Why would I need to see an infectious disease doctor?

Your doctor may refer you to an infectious disease specialist if the infection is difficult to diagnose, accompanied by a high fever or does not respond to treatment.

What are the 4 types of infectious diseases?

There are different types of pathogens, but we’re going to focus on the four most common types: viruses, bacteria, fungi, and parasites.

What are the 5 ways infectious diseases are transmitted?

Five common ways germs are spread:Nose, mouth, or eyes to hands to others: Germs can spread to the hands by sneezing, coughing, or rubbing the eyes and then can be transferred to other family members or friends. … Hands to food: … Food to hands to food: … Infected child to hands to other children: … Animals to people:

What diseases does an infectious disease doctor treat?

An infectious disease (ID) specialist is (see below, “Subspecialty/Fellowship Training”*) an expert in the diagnosis and treatment of diseases caused by microorganisms, including bacteria, viruses (such as HIV and hepatitis), fungi and parasites.

What are the examples of infectious diseases?

Protect yourself and your family from preventable infectious diseasesCoronaviruses. … Diphtheria. … Ebola. … Flu (Influenza) … Hepatitis. … Hib Disease. … HIV/AIDS. … HPV (Human Papillomavirus)More items…

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.