What are communicable diseases?

Communicable diseases, also known as infectious diseases or transmissible diseases, are illnesses that result from the infection, presence and growth of pathogenic (capable of causing disease) biologic agents in an individual human or other animal host.

What are communicable diseases?

Communicable diseases, also known as infectious diseases or transmissible diseases, are illnesses that result from the infection, presence and growth of pathogenic (capable of causing disease) biologic agents in an individual human or other animal host.

Is Plague Doctor real?

A plague doctor was a physician who treated victims of the bubonic plague during epidemics. These physicians were hired by cities to treat infected patients regardless of income, especially the poor that could not afford to pay. In one case, a plague doctor was a fruit salesman before his employment as a physician.

What infectious disease has the highest mortality rate?

mortality rate). The infection fatality rate (IFR) is the proportion of people infected by a disease-causing agent, including asymptomatic and undiagnosed infections, who die from the disease; it cannot be higher than the CFR and is often much lower….List of human disease case fatality rates.

Disease AIDS/HIV infection
Type Viral
Treatment Untreated
CFR 99%

What are the common methods of transmission of diseases Class 9?

Direct Transmission

  • Person to Person. When an infected person comes in contact with or exchanges body fluids with a non-infected person.
  • Droplet Transmission.
  • Spread by skin.
  • Spread through body fluids or blood.
  • Airborne Transmission.
  • Contaminated Objects.
  • Vector-Borne Diseases.
  • 4.Food and Drinking Water.

What are the top 3 communicable diseases?

List of Communicable Diseases

  • 2019-nCoV.
  • CRE.
  • Ebola.
  • Enterovirus D68.
  • Flu.
  • Hantavirus.
  • Hepatitis A.
  • Hepatitis B.

What is the leading infectious disease?

Tuberculosis. TB is arguably the world’s leading cause of death from an infectious agent. The WHO estimates that 10.4 million new cases and 1.5 million deaths occur from TB each year (WHO 2016a). One-third of TB cases remain unknown to the health care system.

What are different means by which infectious disease spread?

Infectious diseases can spread in a variety of ways: through the air, from direct or indirect contact with another person, soiled objects, skin or mucous membrane, saliva, urine, blood and body secretions, through sexual contact, and through contaminated food and water.

What are the 4 routes of transmission?

The transmission of microorganisms can be divided into the following five main routes: direct contact, fomites, aerosol (airborne), oral (ingestion), and vectorborne. Some microorganisms can be transmitted by more than one route.

Why did plague doctors carry sticks?

Last but not least, plague doctors carried wooden sticks. They used these sticks to examine infected patients, avoiding close proximity and skin-to-skin contact. These sticks were also sometimes used by doctors to defend against desperate patients.

What are the six modes of transmission for communicable diseases?

Infectious agents include helminths, protozoa, bacteria, viruses and fungi. Six factors are involved in the transmission of communicable diseases: the infectious agent, the reservoir, route of exit, mode of transmission, route of entry, and the susceptible host.