Question: It is the most widely used vaccine worldwide, with more than 90% of all children being vaccinated. The immunity it induces decreases after about ten years. As tuberculosis is uncommon in most of Canada, the United Kingdom, and the United States, BCG is administered only to those people at high risk. Part of the reasoning against the use of the vaccine is that it makes the tuberculin skin test falsely positive, reducing the test's use in screening. A number of new vaccines are currently in development.
Try to answer this question if possible: For about how long does full immunity from the TB vaccine last?
Answer: ten years
Question: A defect in the human homologue of the Drosophila "period" gene was identified as a cause of the sleep disorder FASPS (Familial advanced sleep phase syndrome), underscoring the conserved nature of the molecular circadian clock through evolution. Many more genetic components of the biological clock are now known. Their interactions result in an interlocked feedback loop of gene products resulting in periodic fluctuations that the cells of the body interpret as a specific time of the day.[citation needed]
Try to answer this question if possible: What does the body interpret from the gene feedback loop?
Answer: time of the day
Question: Secular Gothic architecture can also be found in a number of public buildings such as town halls, universities, markets or hospitals. The Gdansk, Wrocaw and Stralsund town halls are remarkable examples of northern Brick Gothic built in the late 14th centuries. The Belfry of Bruges or Brussels Town Hall, built during the 15th century, are associated to the increasing wealth and power of the bourgeoisie in the late Middle Ages; by the 15th century, the traders of the trade cities of Burgundy had acquired such wealth and influence that they could afford to express their power by funding lavishly decorated buildings of vast proportions. This kind of expressions of secular and economic power are also found in other late mediaeval commercial cities, including the Llotja de la Seda of Valencia, Spain, a purpose built silk exchange dating from the 15th century, in the partial remains of Westminster Hall in the Houses of Parliament in London, or the Palazzo Pubblico in Siena, Italy, a 13th-century town hall built to host the offices of the then prosperous republic of Siena. Other Italian cities such as Florence (Palazzo Vecchio), Mantua or Venice also host remarkable examples of secular public architecture.
Try to answer this question if possible: What is an example of secular Northern Brick Gothic architecture from the 12th century?
Answer: unanswerable
Question: Another Arabic word sometimes used for Christians, particularly in a political context, is Salibi ( "Crusader") from salib ( "cross") which refers to Crusaders and has negative connotations. However, Salibi is a modern term; historically, Muslim writers described European Christian Crusaders as al-Faranj or Alfranj () and Firinjiyah () in Arabic" This word comes from the Franks and can be seen in the Arab history text Al-Kamil fi al-Tarikh by Ali ibn al-Athir.
Try to answer this question if possible: What does Alfranj mean?
Answer:
European Christian Crusaders