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Immunization against the pathogens that cause diarrheal disease is a viable prevention strategy, however it does require targeting certain pathogens for vaccination. In the case of Rotavirus, which was responsible for around 6% of diarrheal episodes and 20% of diarrheal disease deaths in the children of developing countries, use of a Rotavirus vaccine in trials in 1985 yielded a slight (2-3%) decrease in total diarrheal disease incidence, while reducing overall mortality by 6-10%. Similarly, a Cholera vaccine showed a strong reduction in morbidity and mortality, though the overall impact of vaccination was minimal as Cholera is not one of the major causative pathogens of diarrheal disease. Since this time, more effective vaccines have been developed that have the potential to save many thousands of lives in developing nations, while reducing the overall cost of treatment, and the costs to society.
What percent is the rotavirus responsible for in diarrheal disease deaths?
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The answer: 20%


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Similarly, in the United States, the independent National Research Council has noted that "sufficient domestic renewable resources exist to allow renewable electricity to play a significant role in future electricity generation and thus help confront issues related to climate change, energy security, and the escalation of energy costs … Renewable energy is an attractive option because renewable resources available in the United States, taken collectively, can supply significantly greater amounts of electricity than the total current or projected domestic demand." .
Why is renewable energy an attractive option?
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The answer: can supply significantly greater amounts of electricity than the total current or projected domestic demand


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The term samurai originally meant "those who serve in close attendance to nobility", and was written with a Chinese character (or kanji) that had the same meaning. In Japanese, it was originally recorded in the Nara Period as a verb *samorapu ("to watch, to keep watch, to observe, to be on the lookout for something; to serve, to attend"), which is believed to be derived from the frequentative form (*morapu 守らふ) of the verb moru (守る, "to watch, to guard, to be on the lookout; to keep, to protect, to take care of, to be in charge of, to have as one's ward"). By the Heian period, this word had developed into the verb saburahu (さぶらふ, "to serve, to attend"), from which a deverbal noun saburahi (さぶらひ, "servant, attendant") was later derived, and this noun then yielded samurahi (さむらひ) in the Edo period. In Japanese literature, there is an early reference to samurai in the Kokinshū (古今集, early 10th century):
What did 'saburahu' mean?
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The answer: to serve, to attend


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The francophone Swiss Rodolphe Töpffer produced comic strips beginning in 1827, and published theories behind the form. Cartoons appeared widely in newspapers and magazines from the 19th century. The success of Zig et Puce in 1925 popularized the use of speech balloons in European comics, after which Franco-Belgian comics began to dominate. The Adventures of Tintin, with its signature clear line style, was first serialized in newspaper comics supplements beginning in 1929, and became an icon of Franco-Belgian comics.
What 1925 cartoon made speech bubbles popular?
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The answer:
Zig et Puce