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. A brief review of the general characteristics of each of these agents and examples of some diseases they cause follows.
what type of diseases do you go to an infectious disease doctor for?
HIV/AIDS. Lyme disease. Malaria and other tropical diseases. Measles, Mumps and Rubella.
What is the most common bacterial infection? Bacterial infections can range from minor illnesses such as strep throat and ear infections to more life-threatening conditions like meningitis and encephalitis. Some of the most common bacterial infections include: Salmonella is a type of infection often described as food poisoning.
do I need a referral to see an infectious disease doctor?
Infectious diseases and infections may require a special type of intervention outside of your regular physician. You’ll need to make an appointment with an infectious disease specialist and bring your referral slip to the appointment unless your physician makes prior arrangements.
What are the examples of infectious diseases?
Infectious diseases are diseases caused by living organisms like viruses and bacteria. They can be passed from person to person through body secretions, insects or other means. Examples are SARS, influenza, the common cold, tuberculosis (TB), Hepatitis A and B.
what are the 4 types of infectious diseases?
Types of infection include bacterial, fungal, viral, protozoan, parasitic, and prion disease. They are classified by the type of organism causing the infection. Infections can range from mild inflammation in one person to an epidemic.
Why do you see 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. They may order blood serum studies for antibodies indicating the presence of unusual or uncommon diseases.
What is the difference between an infectious and noninfectious disease?
The most common cause of infectious diseases are pathogens called viruses and bacteria, but they can also be caused by fungi or protozoa. Pathogens can be spread in different ways. Noninfectious diseases are not transmitted from one person to another and are not caused by pathogens.
What are the 6 deadliest infectious diseases?
Deadliest Contagious Diseases By Death Toll. Comparison point: As of Sept. HIV/AIDS: 1.6 million deaths. Tuberculosis: 1.3 million deaths. Pneumonia: 1.1 million children under the age of 5. Infectious Diarrhea: 760,000 children under the age of 5. Malaria: 627,000 deaths.
What is the main cause of infectious diseases?
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.
How do you know if you have an infection in your body?
Other common warning signs include: Fever and chills. Very low body temperature. Peeing less than normal. Rapid pulse. Rapid breathing. Nausea and vomiting. Diarrhea.
What kind of doctor specializes in infectious diseases?
An infectious disease doctor is a physician who specialises in the various infections that can affect the human body. An infectious disease doctor may also be known as an ID physician.
How do you detect a 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, he or she also can order a blood or urine test to help confirm a diagnosis, or a “culture test” of tissue to identify bacteria or viruses.
Can blood test detect bacterial infection?
A blood culture test helps your doctor figure out if you have a kind of infection that is in your bloodstream and can affect your entire body. Doctors call this a systemic infection. The test checks a sample of your blood for bacteria or yeast that might be causing the infection.
Which infectious disease kills the most?
While diseases like Ebola and severe acute respiratory syndrome (SARS) make headlines for causing fatal epidemics, the world’s deadliest infectious disease is something far more common, yet far less talked about: tuberculosis. Tuberculosis, or TB, kills 1.6 million people every year — or 4,000 people a day.