Several factors contribute to the emergence and re-emergence of infectious diseases, but most can be linked with the increasing number of people living and moving on earth: rapid and intense international travel ; overcrowding in cities with poor sanitation; changes in handling and processing of large quantities of food ...
What factors contribute to disease?
The 7 leading risk factors can be divided into 2 clusters: a nutritional/physiological group contributing especially to risk of vascular disease – blood pressure, blood cholesterol concentration , body mass index, BMI (serving as an operational measure for excess adiposity), low fruit and vegetable consumption and ...
What are the 3 factors that cause disease?
- Bacteria. These one-cell organisms are responsible for illnesses such as strep throat, urinary tract infections and tuberculosis.
- Viruses. Even smaller than bacteria, viruses cause a multitude of diseases ranging from the common cold to AIDS.
- Fungi. ...
- Parasites.
What are the emerging diseases?
Emerging diseases include HIV infections, SARS, Lyme disease, Escherichia coli O157:H7 (E. coli), hantavirus, dengue fever, West Nile virus , and the Zika virus. Reemerging diseases are diseases that reappear after they have been on a significant decline.
What are the three 3 factors that affect the likelihood of infection occurring from a pathogen?
Common pathogen factors are immune evasion, high viral load and low infectious dose. Common host factors are crowding, promiscuity and the presence of co-infections.
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.
How can we prevent disease?
- Eat Healthy. Eating healthy helps prevent, delay, and manage heart disease, type 2 diabetes, and other chronic diseases. ...
- Get Regular Physical Activity. ...
- Avoid Drinking Too Much Alcohol. ...
- Get Screened. ...
- Get Enough Sleep.
What are the 3 levels of prevention?
- improving the overall health of the population (primary prevention)
- improving (secondary prevention)
- improving treatment and recovery (tertiary prevention).
What are the four leading causes of chronic disease?
Four modifiable risk factors are principal contributors to chronic disease, associated disability, and premature death: lack of physical activity, poor nutrition, tobacco use, and excessive alcohol consumption (CDC 2012).
What are the major risk factors for these diseases?
- Risk factors and disease burden.
- Tobacco smoking.
- Excessive alcohol consumption.
- Abnormal blood lipids (dyslipidaemia)
- Nutrition.
- Insufficient physical activity.
- Overweight and obesity Overweight and obesity – expandOverweight and obesity – collapse. Causes of overweight and obesity. Who is overweight?
- High blood pressure.
How can we control re emerging diseases?
Improve methods for gathering and evaluating surveillance data . Ensure the use of surveillance data to improve public health practice and medical treatment. Strengthen global capacity to monitor and respond to emerging infectious diseases.
What is the difference between emerging and re emerging diseases?
Emerging diseases are those whose incidence in humans has increased in thepast two decades, and re-emergence is the reappearance of a known disease aftera significant decline in incidence .
Is Ebola an emerging disease?
Ebola is considered an emerging infectious disease . It was first recognized in 1976 as the cause of twin outbreaks of disease near the Ebola River in the Democratic Republic of the Congo (then known as Zaire) and in a region of Sudan. Some 300 people in each country became infected.
What are three factors that influence the spread of emerging diseases?
Several factors contribute to the emergence and re-emergence of infectious diseases, but most can be linked with the increasing number of people living and moving on earth: rapid and intense international travel; overcrowding in cities with poor sanitation; changes in handling and processing of large quantities of food ...
What are the modes of disease transmission?
- Direct. Direct contact. Droplet spread.
- Indirect. Airborne. Vehicleborne. Vectorborne (mechanical or biologic)
How do I know if I have fungal or bacterial infection?
Often, doctors can identify the type of skin infection based on the appearance and location . Your doctor may ask about your symptoms and closely examine any bumps, rashes, or lesions. For example, ringworm often causes a distinct circular, scaly rash.
