At the beginning of the 20th century, the leading cause of death in the U.S. was infectious diseases.
<h3>What are infectious diseases?</h3>
Infectious diseases are any type of disease that can be transmitted by suitable hosts and vectors, which are caused by bacteria and viruses.
Infectious diseases are well known to produce epidemics and pandemics and vaccination helped to fight against them.
Infectious diseases were the main cause of death around the world (not only in the USA), but now we are able to fight against transmissible diseases by using the latest technological advancements.
In conclusion, at the beginning of the 20th century, the leading cause of death in the U.S. was infectious diseases.
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The correct Answer is 76.8
The blood test that requires that the erythrocytes be lysed is:
<h3>What is Hemoglobin concentration?</h3>
Hemoglobin concentration is a kind of clinical test that is used to measure the number of red blood cells that an individual has at a particular point in time.
Since the red blood cells carry oxygen to the vital organs, a shortage of hemoglobin will point to danger.
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In statistics, the absolute deviation of an element of a data set is the absolute difference between that element and a given point. Typically the deviation is reckoned from the central value, being construed as some type of average, most often the median or sometimes the mean of the data set.
