An
infectious person or animal
is one from whom the infectious agent can be naturally acquired. 19.
What are the 4 ways that infectious diseases can be spread or acquired?
- the air as droplets or aerosol particles.
- faecal-oral spread.
- blood or other body fluids.
- skin or mucous membrane contact.
- sexual contact.
Is any objective evidence of a disease that can be observed or measured by an observer?
Any objective evidence of a disease, such as a skin rash or a cough, is
a sign
. A doctor, family members, and the individual experiencing the signs can identify these.
When the infectious agent can be transmitted from infected host to new host?
Vector transmission
occurs when a living organism carries an infectious agent on its body (mechanical) or as an infection host itself (biological), to a new host. Vehicle transmission occurs when a substance, such as soil, water, or air, carries an infectious agent to a new host.
How can an individual acquire this type of infection?
Infectious diseases commonly spread through the direct
transfer of
bacteria, viruses or other germs from one person to another. This can happen when an individual with the bacterium or virus touches, kisses, or coughs or sneezes on someone who isn’t infected.
What are the 4 types of infections?
The four different categories of infectious agents are
bacteria, viruses, fungi, and parasites
. When studying these agents, researchers isolate them using certain characteristics: Size of the infectious agent.
What are the 3 main ways infection can get into the body?
Pathogens can enter the body by
coming into contact with broken skin, being breathed in or eaten
, coming into contact with the eyes, nose and mouth or, for example when needles or catheters are inserted.
What are examples of signs?
Medical issue Sign (objective) Symptom (subjective) | Common cold Runny nose Sinus pain from congestion | Chickenpox Spots and blisters Fatigue | Type 2 diabetes Poor wound healing Thirst | Coronary heart disease Fast heart rate Chest pain |
---|
What is an example of an objective symptom?
Objective symptoms are those evident to the observer and called physical signs. Examples of such physical signs are
temperature, pulse rate and rhythm, respiratory rate and character, temperature, posture, edema, gait
. Faint cardiac murmurs and pulmonary rales are pure objective signs.
What are the stages of disease progression?
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 diseases can be transmitted through saliva?
- Rhinovirus (colds)
- Flu virus.
- Epstein-Barr virus (mononucleosis, or mono)
- Type 1 herpes (cold sores)
- Strep bacteria.
- Hepatitis B and hepatitis C.
- Cytomegalovirus (a risk for babies in the womb)
What are 5 diseases caused by bacteria?
Other serious bacterial diseases include
cholera, diphtheria, bacterial meningitis, tetanus, Lyme disease, gonorrhea, and syphilis
.
What are 5 ways diseases 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 are the most common mode of transmission of infection in healthcare settings?
Contact
is the most frequent mode of transmission of health care associated infections and can be divided into: direct and indirect. An example of contact transmitted microorganisms is Noroviruses which are responsible for many gastrointestinal infections.
What is the main route to spread infection?
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.
What are the 6 steps in the chain of infection?
The six links include:
the infectious agent, reservoir, portal of exit, mode of transmission, portal of entry, and susceptible host
. The way to stop germs from spreading is by interrupting this chain at any link.