(二） The World Health Organization (WHO) kept its pandemic swine flu alert at the second highest level on June 5，but said that future changes would reflect how severe an outbreak was. The U.N. agency has been evaluating how to adjust its pandemic alert scale to reflect both the severity of the flu as well as its
36_spread around the world. This follows criticism that it may have caused unnecessary panic about
the disease whose effects have been mainly mild_37_in Mexico, where it is known to have killed 103
people. The experts, meeting as WHO’s emergency committee, made recommendations on a number of factors to be taken into account to assess the severity of an epidemic. To date, the novel H1N1 strain,
_38_swine flu, has infected 21,940 people in 69 countries, killing 125 of them, according to the WHO.
Mexico, the United States and Canada have suffered the impact of the illness and a case was confirmed in Saudi Arabia for the first time. More than 13,000 cases have been detected in the U.S., with 27 deaths
_39_，according to the federal Centers for Disease Control and Prevention. The WHO representative
said this week that one idea was to add three severity notches to the highest marker of 6, so the overall level can reach the peak even if the flu’s effects remain moderate, and then be adjusted again later if the virus causes more serious health problems. WHO’s pandemic scale now remains at the second-highest level, phase
5 on a scale of 1 to 6, meaning a widespread infection is _40_. Production of seasonal influenza
vaccines should also continue for now, as work proceeds on developing a vaccine against the new flu.
【題組】39• (A) segregated (B) advised (C) confirmed (D) excluded
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