ビl疫学に関する下記の英文を読み， 質問に答えなさい。

[1JOn 28 February 2003, the French Hospital of Hanoi, Vietnam, a private hospital offewer than 60 beds, consulted the Hanoi office of the World Health Organization (WHO).
A business traveller from Hong Kong had been hospitalized on 26 February forrespirat01y'* symptoms resembling influenza that had started three days before.

TheWHO medical officer, Dr Carlo Urbani, an infectious disease epidemiologist* and aprevious member of Medccins Sans Frontiercs *, answered the call. Within days, in thecourse of (ア）three more people fell ill with the same symptoms, he recognized theaggressiveness and the highly contagious* nature of the disease. It looked like influenzabut it wasn't. Early in March the first patient died, while similar cases started to show upin Hong Kong and elsewhere. Dr Urbani courageously persisted worldng in (イ）heknew to be a highly hazardous environment. After launching a worldwide alert via theWHO surveillance network, he fell i11 while travelling to Bangkok and died on 29 March.
A run of new cases, some fatal, was now occurring not only among the staff of theFrench Hospital,Canada.

（ウ）in Hong Kong, Taiwan,Singapore, mainland China, andPublic health services were confronted with two related tasks: to build anemergency worldwide net of containment, while investigating the ways in which thecontagion spread in order to pinpoint its origin and (エ）discover how the responsibleagent, most probably a micro-organism, was propagated*. It took four months to identifythe121止二。f th e new disease as a virus of the corona-virus family that had jumped toinfect humans from wild small animals handled and consumed as food in the Guangdongprovince* of China.

By July 2003, the worldwide propagation of the virus, occurringessentially via infected air travellers, was blocked.

The outbreak of the new disease,labelled SARS (Severe Acute Respiratory Syndrome), stopped at some 8, 000 cases and800 deaths.

The toll would have been much heavier were it not for a remarkableinternational collaboration to control the spread of the virus through isolation of cases andcontrol of wildlife markets.

畠饂� of this effort, combiningEpidemiology was at thinvestigations in the populations hit by SARS (オ）laboratory studies that provid叫the knowledge required for the disease-control interventions.
[2]‘Epidemiology owes its name (力） epidemic', derived from the Greek epi (on) anddemos (population). Epidemics like SARS that strike as unu 訊tal appearances of a diseasein a population require immediate investigation, but essentially the same investigativeapproach applies to diseases in general, whether unusual in type or frequency or presentall the time in a population in an'endemic*'form. In fact, the same methods are used tostudy normal physiological* events such as reproduction and pregnancy, and physical and-3-◇Ml(509�4)mental growth, in populations.

Put concisely, epidemiology is the study of healthand disease in populations.
(Reproduced with permission of the Licensor through PLSclear)［出典：Rodolfo Saracci (2010) Epidemiology: A Very Short Introduction]Notesrespiratory呼吸器官のepidemiologist疫学者Medecins Sans Frontieres国境なき医師団(1971年に設立された医療活動などを行う国際NGO)contagious接触伝染性のpropagate伝播させるGuangdoug provinceendemic広東省（病気や問題などが特定の地域や集団に）特有のphysiological生理的な

ア1. 本文中の（)～(力）に入れるのに最も適切なものを それぞれ1 ~4の中から1つずつ選び． 記号で答えなさい。
（1. what2. that3. which4. when

イ1. that2. which3. what4. where

ウ1. as2. but3. resulting4. further

工1. therefore2. so3. thus4. tu

オ1. in2. with3. against4. at

力1. for2. to3. with4. aboutア）2. 下線部(IH3)の語の本文中の意味と最も近い意味を持つものを1 ~4の語の中から1つずつ選んで， 記号で答えなさい。

(1)

run1. race(2)4, dash2. accomplice3. symptom4. cause2. mind3. chest4. courageheart1. center3.

3. journeyculprit1. effect(3)2. series[ 2]の下線部を日本語に訳しなさい。

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ビl許諾不可の為、未掲載- 5 -◇Ml(G09-6)

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＞-8-◇ Ml(509―9)□次の各問いに答えよ。 ただし， 答えは結果のみを解答欄に記入せよ。
△OABにおいて，OA = 7, OB = 8, AB = 9とする。 また， △OABの垂心をH, 内心をX =;,面＝；とするとき， 次の問いに答えよ。

I, 外心をJとする。〇→ →(1)内積a· bを求めよ。

(2)OHをa, bを用いて表せ。

'→→：→ →�→ →(3) 0]をa, bを用いて表せ。

(4) OJをa, bを用いて表せ。

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