Cancer. Hemoglobin is what binds with the oxygen in the blood stream, carrying it to the rest of your body. Inadequate iron supply is the main cause as to why hemoglobin levels are low. Cancer is the disease where cells continue to grow and divide without stopping. This usually causes the formations of tumors found in a variety of areas in the body. Anemia, the general term for any micro-nutrient deficiency, is one of the main causes of cancer in cancer patients. The protein, hemoglobin is mainly composed of iron. A high blood cell count, specifically white blood cells is very common among cancer patients. This is do to the human body sending antibodies to an infection among the body to fight and kill the infection. When this happens, a significant decrease in the hemoglobin occurs because the body is trying to send the most oxygen to the infectious area. Thus causing a decrease in hemoglobin, as well as a decrease in iron.
Epidemiologists are scientists who study diseases within populations of people. In essence, these public health professionals analyze what causes disease outbreaks in order to treat existing diseases and prevent future outbreaks.
Therefore the most precise answer is
D) it states both their analytical work (to study causes and patterns) and also what they pretend to achieve(to contain or treatment) but doesn't fully answer the question "Why their concern is so diverse"
A) Does not only give a full valid definition but answers the question "why they concern is so diverse (extensive)?"
because they study "ALL" diseases..
Thus, the correct answer is A
Portal of exit, i think. Its open wounds on the skin in the chain.
Answer: the correct option is C (Use an antiseptic and put on a glove over the infected cut Leave it alone).
Explanation: An antiseptic is antimicrobial substance that are applied to living tissue/skin to reduce the possibility of infection.
Therefore if you have an infected cut on your hand that is swollen and red. You use an antiseptic and put on a glove over the infected cut .