题目内容：

William Campbell, Satoshi Omura and Tu Youyou jointly won the 2015 Nobel Prize for medicine for their work against parasitic diseases (寄生虫病), the award-giving body said on Monday.

William Campbell from Ireland and Satoshi Omura from Japan won half of the prize for their discovery of the drug avermectin.(阿维菌素).

The Chinese scientist Tu Youyou was awarded the other half of the prize for discovering artemisinin (青蒿素), a drug that has sharply lowered the number of people who die from malaria. (疟疾). Tu’s discovery is a great contribution(贡献) by traditional Chinese medicine to human health.

“These two discoveries have provided humankind with powerful new means to combat(对抗) parasitic diseases,” the Nobel Assembly said and awarded the prize of 8 million Swedish crowns($960,000).”

Medicine is the first of the Nobel prizes awarded each year. Prizes for achievements in science, literature and peace were first awarded in 1901 in accordance with the will(遗愿) of the inventor and businessman Alfred Nobel.

根据短文内容，判断下列句子正误。正确的用“A”表示，不正确的用“B”表示。

1.Three scientists share the the 2015 Nobel Prize for medicine.

2.Tu Youyou discovers a new drug, avermectin.

3.Tu Youyou’s discovery comes from traditional Chinese medicine.

4.Tu Youyou won the prize of 8 million dollars for her discovery.

5.The Nobel Prizes were first awarded in 1901 in accordance with the will of Alfred Nobel.