Communicable Diseases Flashcards
Route by which infectious agent is transmitted from reservoir to another host
Mode of transmission
Dried secretions from respiratory tract which remain suspended in in air for some time
Airborne
Several events happen one after another in the form of a chain
Chain of Transmission
This happens when agent enters the host thru any specific part of the body before it can cause the disease
Successful transmission
Habitat where agent normally lives, grows, multiplies
Reservoir
Object contaminated by infectious agent
Vehicle-borne
From infected to new host without the need for intermediate
Direct transmission
Organisms capable of producing infection
Infectious agent
T/F: Transmission occurs once agent leaves through route of exit
True
Individuals who are likely to develop a communicable disease after exposure to agents
Susceptible host
Types of direct contact
Person to person
- touching, biting, kissing, sex, droplets from cough, sneeze, and talk
Transplacental
Infected to new host through intermediates
Indirect transmission
Presence of infectious agent in or on the vehicle
Contamination
Site of infected host where the agent gets out
Portal of Exit
Usually and arthropod which transmits infectious agent to new host
Vector-borne
Risk factors of being susceptible
Poor hygiene Poor control of reservoir Low immunity - hiv/aids - young - unvaccinated - poor nutrition - pregnant
Site thru which agent enters the new host
Portal of entry
Resistance of an individual to communicable diseases
Immunity
How to reduce CD development (2)
- Reduce exposure to infectious agent
2. Increasing person’s immunity
Establishing events for emerging disease
- Infectious agent is introduced to a vulnerable population
2. Agent has the ability to spread readily from person to person
Ability of infectious agent to change its genetic information
Natural factor
T/F: large changes in natural factors can cause pandemic because immune system is not prepared to recognize and defend against
New variants
True
Drugs that are useful in the past are no longer useful in controlling certain diseases
Antimicrobial resistance
A growing number of people chose not to become vaccinated even when safe and effective vaccines exist
decline in vaccination
As population increases possibility of exposure to potential host increases
Demographic factors
Spread of infectious diseases through air travel
International travel
Housing and transportation
Socioeconomic factors
Warming climate or altered habitats increases chances of spread intro new geographic areas
Environmental factors
Develops plans, policies, programs, projects and strategies for diseases prevention and control and health protection
Disease prevent and control bureau - DOH
Viral illness that causes paralysis, difficulty in breathing, death
Polio
Any patient below 15 years old with acute flaccid paralysis; guillain-barre syndrome
Polio
Causative agent of polio
Poliovirus/enterociris