■次の英文を読んで, あとの問いに答えなさい。
Dengue fever is an illness similar to influenza. It causes a high fever, severe headache,
12ルろ
Dain behind the eyes and so on. What makes it different from influenza is that people get
dengue when they are bitten by mosquitoes carrying the virus.
Originally, dengue was found in hot and humid climates. According to WHO* data, only
ス
nine countries experienced dengue before 1970. However, now more than 100 countries
struggle with it. For example, in 2015, 2.35 million cases of dengue were reported in North
い。
and South America, and 1,181 people died asa result of the disease.
Dengue can be easily cured if treated_properly. The WHO is trying to support countries
with a dengue problem by providing information about the disease and the necessary
* WHO (World Health Organization) :世界保健機関
treatment.