ANSWER: CASE-CONTROL STUDY
EXPLANATION:
An epidemiology expert will make use of a Case-control Study for proper determination of association or linkage between the oil spill and the disease outbreak (arthritis).
Case-control Study provides an observational experiment between two existing groups (two reservoirs) differing in outcome (affected and not affected), they are highlighted and compared on the basis of a context (disease outbreak; arthritis).
However, the known group is regarded as the control group and it provides a substantial guide to the confirm the validity of other experimental groups in relation to the general context (outbreak of arthritis).
The most natural approach to get enough Vitamin D is through regular sun exposure. Aim for 10 to 30 minutes of midday sunshine many times per week to maintain appropriate blood levels. Those with darker complexion may require a little more.
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What is Vitamin D ?</h3>
According to the National Institutes of Health, two to three times per week, between five and thirty minutes of unprotected sun exposure to your face, arms, legs, or back between the hours of 10 a.m. and 3 p.m. is sufficient for your body to produce all of the D3 it requires. Vitamin D synthesis can be inhibited by sunscreen.
Your skin tone, age, dietary habits, and the environment in which you reside all have a role. In general, scientists believe that 5 to 15 minutes, or up to 30 minutes if you have dark skin, is approximately right to get the most benefit without endangering your health. If you wear sunscreen, you can spend more time outside and yet receive the same result.
In the continental United States, UV rays are typically highest between 10 a.m. and 4 p.m. (9 a.m. to 3 p.m. standard time). The UV Index predicts each day's UV ray intensity. Avoid overexposing your skin to the sun if your area's UV index is 3 or higher.
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Answer:
Explanation:
Anemia is lack of RBC in body or disfunctional RBCs. Risk factors would be things that make you prone to have this disease. Some commonly known factors are:
- Age (more common as you keep aging)
- Family history (genetics does make you less or more prone)
For more info visit: https://www.mayoclinic.org/diseases-conditions/anemia/symptoms-causes/syc-20351360
Proper and frequent hand-washing techniques can be considered a biomedical innovation in the 19th century because, during that time, it was the introduction of something new.
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What is hand-washing?</h3>
- Hand-washing was a new method introduced to medicine and clinical environments to keep areas as sanitary as possible and prevent the spread of disease.
- The act of washing one's hands with soap or hand-washing and water is referred to as hand hygiene and is done to get rid of bacteria, viruses, and other harmful and undesired items that have adhered to the hands. As wet and moist hands are more easily recontaminated, drying the cleansed hands is a necessary step in the process.
- Unless hands are visibly abnormally unclean or greasy, hand sanitizer that is at least 60% (v/v) alcohol in water can be used in place of soap and water if neither is available.
- In order to stop the spread of infectious diseases at home and in other settings, hand-washing is essential to practice good hand hygiene.
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