Smallpox （） disease, has been completely ___________.

A．wiped out

B．reached out

C．worked out

D．hung out

The disease has completely ______ in this country.

A．died out

B．died down

C．died away

D．died off

The disease has completely ______ in this country.

A．died out

B．died down

C．died away

D．died off

Whether depression is a physical disease has not been confirmed yet.

A．Y

B．N

C．NG

contagious viral disease, it was endemic in Europe, causing the death of millions of people until the development of vaccination by Edward Jenner around 1800. In many non- European nations, it remained a dreaded, often fatal illness until very recently.

In May 1966, the World Health Organization (WHO), an agency of the United Nations, was authorized to initiate a global campaign to eradicate smallpox. The goal was to eliminate the disease in one decade. At the time, the disease posed a serious threat to people in thirty nations. More than 700 physicians, nurses, scientists, and other personnel from WHO joined about 200,000 health workers in the infected nations to battle the disease. Because similar projects for malaria and yellow fever had failed, few believed that smallpox could actually be eradicated, but eleven years after the initial organization of the campaign, no cases were reported in the field.

The strategy was not only to provide mass vaccinations but also to isolate patients with active smallpox in order to contain the spread of the disease and to break the chain of human transmission. Rewards for reporting smallpox assisted in motivating the public to aid health workers. One by one, each smallpox victim was sought out, removed from contact with others and treated. At the same time, the entire village where the victim had lived was vaccinated.

By April 1978, WHO officials announced that they had isolated the last known case of the disease, but health workers continued to search for new cases for two additional years to be completely sure. In May 1980, a formal statement was made to the global community. Today smallpox is no longer a threat to humanity. Routine vaccinations have been stopped worldwide.

Which of the following is the best title for the passage？

A．World Health Organization

B．Eradication of Smallpox

C．Smallpox Vaccinations

D．Infectious Diseases

How the Smallpox War Was Won

The world's last known case of smallpox was reported in Somalia, the Horn of Africa, in October 1977. The victim was a young cook called Ali Maow Maalin. His case becomes a landmark in medical history, for smallpox is the first communicable disease ever to be eradicated.

The remarkable campaign to free the world of smallpox has been led by the World Health Organization. The Horn of Africa, embracing the Ogaden region of Ethiopia and Somalia, was one of the last few smallpox ridden areas of the world when the WHO—sponsored Smallpox Eradication Programme (SEP)got underway there in 1971.

Many of the 25 million inhabitants, mostly farmers and nomads living in a wilderness of desert, bush and mountains, already had smallpox. The problem of tracing the disease in such formidable country was exacerbated further by the continuous warfare in the area.

The program concentrated on an imaginative policy of "search and containment." Vaccination was used to reduce the widespread incidence of the disease, but the success of the campaign depended on the work of volunteers. These were men, paid by the day, who walked hundreds of miles in search of "rumours”—information about possible smallpox cases.

Often these rumours turned out to be cases of measles, chicken pox or syphilis but nothing could be left to chance. As the campaign progressed the disease was gradually brought under control. By September 1976 the SEP made its first report that no new cases had been reported. But that first optimism was short-lived. A three-year-old girl called Amina Salat, from a dusty village in the Ogaden in the south-cast of Ethiopia, had given smallpox to a young nomad visitor. Leaving the village the nomad had walked across the border into Somalia. Therc he infected 3,000 people, and among them had been the cook, Ali. It was a further 14 months before the elusive "target zero"—no further cases--was reached.

Even now, the search continues in "high risk" areas and in parts of the country un- checked for some time. The flow of romours has now diminished to a trickle--but each must still be checked by a qualified person.

Victory is in sight, but two years must pass since the last case before an International Commission can declare that the world is entirely free from smallpox.

Ali Maow Maalin's case is significant because he was the______.

A．last person to be cured of smallpox in Somalia

B．last known sufferer of smallpox in the world

C．first smallpox victim in the Horn of Africa

D．first Somalian to be vaccinated for smallpox