Health Flashcards

(53 cards)

1
Q

Define epidemic

A

A widespread occurrence of an infectious disease in an area at a particular time

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2
Q

Define Pandemic

A

A global epidemic of an infectious disease that spreads through a large proportion on the human population

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3
Q

Define Endemic

A

Constantly present low levels of an infectious disease in an area

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4
Q

Define Contagious

A

A disease that is transmitted from one to another through contact

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5
Q

Define Infectious

A

Disease caused by germs that are readily spread from one person to another

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6
Q

Define Viral

A

An agent of infection- micro-organisms smaller than bacteria that invade cells

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7
Q

Define Bacterial

A

An agent of infection, a micro-organism that are free-living

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8
Q

Define Parasitic

A

Organisms living in another organism

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9
Q

Define Mortality Rate

A

The ratio of deaths in an area to the population expressed per thousand per year

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10
Q

Define Infant Mortality rate

A

Number of deaths of children under 1year per thousand live births per year

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11
Q

Define Life expectancy

A

Number of years an individual can expect to live

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12
Q

Define the attack rate

A

Number of cases of a disease diagnosed in an area divided by the total population during the epidemic

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13
Q

Modes of transmission and examples

A
  1. By Air -TB
  2. By Physical Contact- HIV
  3. By living organisms- Malaria
  4. By endemic change- Ringworm
  5. By food/water contamination- Cholera
  6. By blood- Hepatitis
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14
Q

Patterns of Diffusion

A
  1. Expansion Diffusion- the infection spreads out in all directions from point of origin
  2. Contagious Diffusion- the infection spreads out by direct contact
  3. Hierarchical Diffusion- The infection spreads out through a particular system
  4. Relocation Diffusion- An infection spreads into a new area and dies out in its previous location
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15
Q

Describe the work of John Snow and how this has changed to way we map diseases

A

Dr John Snow’s working of mapping the Soho cholera outbreak makes him considered to be the father of epidemiology
- His mapping and analysis techniques are used to determine the patterns and distribution of diseases from local to global scales. He showed that health and disease are not randomly distributed in a population, there are patterns to a diseases occurence and diffusion

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16
Q

What is HIV

A

It is a slow retrovirus, meaning it can take years to show symptoms after infections. It is transmitted through direct contact and is carried within the bloodstream and destroys white blood cells

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17
Q

Where is HIV thought to have originated from

A

In Sub-Saharan Africa, crossing over from the Chimpanzee population in contaminated bush meat or an animal bite

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18
Q

3 ways that HIV can be spread

A
  1. Blood-to-Blood Contact
  2. Exchange of Bodily Fluids
  3. Mother to Child Transmission
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19
Q

Factors effecting the spread of HIV

A
  • International Travel
  • Urbanisation- very mobile population and migration for work
  • Intravenous drug use
  • Reluctnace of people to get tested due to stigma attached
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20
Q

Management and Control of HIV

A
  • Currently considered incurably with no vaccine existing
  • Antiretroviral treatment prolongs peoples lives, however they are expensive and no widely available
  • Education
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21
Q

What is SARS

A

Severe Acute Respitary Syndrome- causing breathing difficulties leading to pneumonia

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22
Q

Where is SARS thought to have originated from

A

In bats and spread to huamns either directly or through animals held in Chinese markets

23
Q

How is SARS transmitted

A

Through respiratory droplets and direct contact

24
Q

How is Ebola Spread

A
  1. Primarily through direct contact with the blood of bodily fluids of an infected person
  2. Contact with contaminated items
  3. Sexual Contact
  4. Breast feeding
25
Management strategies of Ebola
- Best way to control is to prevent it from spreading from person to person in the first place, which involves educating the community - Extending access to clean water - Use of vaccination - Changing social practices-the dead must be dealt with quickly to avoid further infections, which is unpopular
26
What is Silicosis
A long-term lung disease caused by inhaling large amounts of crystalline silica dust (found naturally in many rocks), usually over many years. Once inside the lungs the dust particles attack the immune system, causing swelling leading to scarred lung tissue. Most common in miners
27
Impacts of Silicosis to a country
- Increasing years with disability and long term illness - Increased medical costs and health insurance may be difficult to get - High rates of premature deaths - The disease is now spreading to LICs with expanding mining industries, where legislation and safety regulations are weaker
28
What is Asbestosis
A long-term lung condition caused by prolonged exposure to asbestos fibres. Over time leads to lung scarring
29
How many people were affected by the Bhopal Disaster
- 3000 people died immediately - 8000 died within a week - Overall 15,000 people died 0. 5 million affected
30
What was the Bhopal Disaster
-It was a chemical leak from the Pesticide factory owned by Union Carbide Factory in India, making pesticides
31
Advantages of Tobacco Farming in Malawi by a TNC (x4)
- Provides a large source of income, 2/3 of yearly income - Provide employment, 75% of the population dependent on Tobacco farming - Provide employment for women, which is good progress towards developing women's' human rights - TNCs often have charitable giving, such as providing clean water or healthcare
32
Disadvantages of Tobacco farming in Malawi (x5)
- Children are often employed on Tobacco farms, taking them out of education - They have a high reliance on tobacco companies - Profitability of tobacco farming encourages farmers to grow tobacco instead of food - Pay for tobacco farmers is very low - Tobacco farming acts as propaganda and increases the likelihood of people smoking
33
Compare Branded and Generic Drugs
Generic= normally named after the active ingredient Brand Name= Given by manufacturer Branded drugs are normally 3-30 times more expensive than generic drugs
34
Define Obesity
It is an abnormal accumulation of body fat, usually 20% or more over an individual's ideal body weight
35
Factors affecting the rate of obesity 9x7)
- Growth in powerful food cooperations who push cheap, energy dense food - People lead more sedentary lifestyles - Increase in the availability of processed food containing hidden calories - Influence of advertising - Fruit and Veg are comparitively more expensive - Loss of traditional culinary skills - Link between deprivation and obesity
36
Impacts of Obesity
- Poor health, increased likelihood of diabetes and heart conditions - People who are obese take more sick days, decreasing productivity - Increasing burden on health service, £6.3 billion was spent by HNS on obesity in 2015
37
What is Osteoporosis
A condition that weakens bones, making them fragile and more liekly to break
38
What is Coronary heart disease
A term that describes what happens when your hearts blood supply is blocked or interrupted by a build-up of fatty substances in the coronary arteries
39
Factors influencing CHD
-Level of development, education and employment -Diet -Lifestyle Choices, smoking, drinking and exercise -
40
Factors influencing osteoporosis
- A close family history of osteoporosis - Long periods of inactivity, such as bed-rest - Heavy drinking and smoking - Long term use of certain medicines such as blood clots - Inadequate amount of calcium and Vitamin D - Lack of exercise
41
Define famine
A situation where acute malnutrition rates among children exceed 30%, more than 2 people per 10,000 die per day and people are not able to access food and other basic necessities
42
What were the causes of the Somalian Famine 2017
- Poor infrastructure, resulting in lack of transportation and communication- during the rainy season 60% of the country was inaccessible by road - Failure of the international community to help early enough - Dense population and lack of resources - Civil War - Political Instability - Drought received 40% less than usual rainfall and harvests were 60% below normal
43
What is Health Adjusted Life Expectancy (HALE)
The current expected life duration for a newborn based on current rates of ill health and mortality
44
What is Disability Adjusted Life Years (DALY)
This calculates the present value of future years of disability-free life based on causes of disability in a particular year
45
What is potential years of life lost
Corresponds to the number of deaths multiplied by the life expectancy at the age at which the death occurs
46
Define Health
A state of complete physical and social wellbeing not merely the absence of disease and infirmity
47
Factors affecting Mortality and Morbidity (x9)
- Healthcare Provision - Economic Development - Education - Age - Climate - Conflict - Affluence - Culture - Lifestyle
48
Arguments FOR increasing the number of doctors and hospitals
- It will reduce the shortage of doctors in areas where there is overcrowding - Increasing the number of hospitals should decrease inequality, as more people will have access to them - If there are enough doctors for small local centres, these provide better patient care and there is a smaller risk of disease spreading
49
Arguments AGAINST just increasing the number of doctors and hospitals
- Location, there needs to be incentives for doctors to move to rural or deprived areas - Numbers Vs. Size- there are arguments for and against large hospitals, they tend to be more efficient, but increase the spread of disease - Quality- there is no point in just increasing numbers if it doesn't improve the quality of the care
50
3 aims of the WHO
10 Assisting countries that seek progress towards universal health coverage 20 Helping countries establish their capacity to adhere to International Health regulations 30 Increasing access to essential and high-quality medical products
51
Ways to improve health and welfare (8 points of spec)
1) Increasing the number of doctors, nurses and hospitals 2) Greater awareness of the importance of a good diet 3) Extending access to clean water 4) Use of vaccinations to eradicate diseases 5) Other preventative measures, such as Mosquito nets 6) The role of the WHO 7) Role of the Government 8) Role of NGOs
52
Overview of healthcare in Cuba
- Effective system ranked 39th out of 191 countries, just below the USA, despite spending 10 times less per person at $109 per head - High proportion of money spent on primary and preventitive care, such as vaccination - 2nd highest life expectancy in the Carribbean - Socialised sysetm and is provided through indirect payments - They have 21 medical schools providing free training - Mobile medical assisstance to reduce demand for beds
53
Overview of healthcare in Tanzania
67% of the population live rurally so they have a system aiming to reach the entire population 1)District Hospitals- patients pay a weekly charge 2) Rural Health Centres- basic facilities, 20-30 beds and paid for by the governmnet 3) Rural Dispensaries- mobile clinics that provide basic drugs and immunisation Tanzania manages to provide free medical care to all, this has helped to cut infant mortality -However they have a very poor patient to doctor ratio of 1:50,000