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LOS ANGELES, April 29 (Xinhua) -- Clinical and teaching microbiology laboratories are linked with a nationwide salmonella outbreak in the United States that has killed one person and sickened dozens of others, health officials confirmed on Friday.Since August, about 73 people in 35 states have been sickened by salmonella bacteria, and some of those cases involve a strain of Salmonella typhimurium sold commercially to laboratories, officials from the Centers for Disease Control and Prevention (CDC) said in remarks published by msnbc.com.Illnesses have been tied to laboratories from Alaska to New York, with most reporting one or two cases. Five cases have been reported in Washington state and four in Minnesota.The first illness occurred late August and the most recent cases were reported March 8, according to the CDC.The patients include employees and students of the laboratories, as well as children in the homes of people who work or study at the labs.Patients ranged in age from less than one to 91, with a median age of 24, the CDC said.Cases that developed after March 19 may not yet be included in the total because of the lag time in assessing and reporting illness, said the report.CDC officials warned that bacteria used in the labs can be transmitted through contaminated lab coats, pens, notebooks, car keys and other items brought into the labs.The CDC is working with local and state health departments, the American Society for Microbiology and the Association of Public Health Laboratories to track the outbreak, the report said.Salmonella infections typically result in diarrhea, fever and abdominal cramps. They can be dangerous in very young children or people with compromised immune systems.

JINAN, May 14 (Xinhua) -- Chinese scientists said Saturday that they have found a new species of giant theropod dinosaur in the eastern province of Shandong.The new species, described as a close relative of Tyrannosaurus rex (T. rex), has been named "Zhuchengtyrannus magnus". Paleontological experts found it has unique upper jawbones after examining the skull and jawbones discovered in the city of Zhucheng.It was estimated to be about 11 meters long and 4 meters tall, weighing close to 7 tonnes."We discovered two kinds of tyrannosaurus fossils here and the identity of the other one still remains unclear," said Xu Xing, a researcher at the Institute of Vertebrate Paleontology and Paleoanthropology under the Chinese Academy of Sciences."We've named the new genus Zhuchengtyrannus magnus, which means the 'Tyrant from Zhucheng' because the bones were found in Zhucheng," Xu said.The bones were a few centimeters smaller than the similar bones in the largest T. Rex specimen, so there was no doubt that Zhuchengtyrannus was a huge tyrannosaur, Xu said.According to Xu, Zhuchengtyrannus magnus belonged to a specialized group of gigantic theropods called tyrannosaurines which existed in North America and eastern Asia during the Late Cretaceous Period that dated back about 65 to 99 million years.All tyrannosaurs were carnivorous, bipedal animals that generally had small arms and large skulls. Among the tyrannosaurs, the tyrannosaurines were the largest and characterized by having just two fingers on each hand and large powerful jaws to deliver a bone crushing bite. They were likely both predators and scavengers.The fossil quarry in Zhucheng contains one of the largest concentrations of dinosaur bones in the world. At least 10 dinosaur species have been found in three rounds of excavations since the 1960s, including Tyrannosaurus and Hadrosaurs.

BEIJING, Feb. 18 (Xinhua) -- China needs to reform funding methods for scientific and technological research in order to boost the nation's innovation capabilities, said officials and researchers attending a conference in Beijing Friday.The management of the government-funded research projects should also be reformed, State Councilor Liu Yandong said at the national conference on science and technology work.Liu stressed that reform, innovation and cooperation should be the keys for China's science and technology work over the next five years, when the government would increase funding for research in new strategic industries, such as new energy, biomedicine and high-end manufacturing.Last year, central and local government spending on science and technology development totaled 380 billion yuan (57.8 billion U.S. dollars), Science and Technology Minister Wan Gang said at the conference.Over the past five years, central government spending on science and technology development had grown by around 20 percent annually.However, some researchers have complained problems in the funding system actually hinder innovation and progress.Inflexibility in the management of government funds allowed researchers little freedom to adapt projects to developments in their fields, said Li Zhenzhen, a researcher at the Institute of Policy and Management under the Chinese Academy of Sciences (CAS).Chen Jie, a research fellow of the CAS' Institute of Microelectronics, said some authorities which oversee the spending of research funds had been rather rigid."In some cases, they are more interested in spending most of the funds on new equipment than scientists," Chen said in an earlier interview with Xinhua. "Without decent pay, it is difficult to attract top scientists to work in China.""Having to solicit and lobby for funding to support the team's research projects leaves me no more than five hours a day for real research," Chen said.Top-level scientific brains are the key to the innovative capability of China, he added.A researcher attending Friday's conference echoed Chen's opinion."China manufactures 65 percent of the world's computers. But to my knowledge, we are still spending about 150 billion U.S. dollars annually to buy computer chips from overseas," the researcher told Xinhua on condition of anonymity.Wan Gang also said imported computer chips cost China more than crude oil purchases last year.But Wan believed that with breakthroughs in frontier areas such as cloning, manned space flight, moon exploration and supercomputers, China could expect a leap in science and technology development in the near future.In October last year, China successfully launched its second lunar probe, Chang'e-2.A month later, Chinese supercomputer Tianhe-1A, which can perform 2.57 quadrillion computing operations a second, was ranked the world's fastest in the TOP500 list compiled by U.S. and European researchers.

BEIJING, Feb. 11 (Xinhua) -- China plans to dig 1,350 wells in eight major wheat-growing provinces to help ease the ongoing drought that is threatening the country's grain harvest, said the Ministry of Land and Resources (MLR) on Friday.The ministry will establish an anti-drought and well drilling operation headquarters and three front working teams in north China, Huanghuai area - along the Yellow and Huai rivers - and northwest China, said the MLR at a video conference.Also, China Geological Survey, an institution directly under the MLR, will transfer experienced technicians from its nine affiliated units to form three emergency squads and 12 emergency groups to assist local governments in finding water in those regions, said the MLR.Further, the MLR will send geological survey teams from its nine affiliated units and eight provinces, including Sichuan, Yunnan and Guizhou, to the eight provinces, it said.The survey teams will bring 100 sets of advanced geophysical prospecting instruments and 320 sets of drill machines to dig 1,350 wells to ease the water shortages affecting people and livestock, especially those in mountainous areas, and strengthen local irrigation, it noted.The eight provinces include Shandong, Henan, Hubei, Anhui, Shanxi, Shaanxi, Gansu and Jiangsu, which are China's major wheat-producing regions and have been severely affected by months-long drought.The MLR had previously put in place a series of measures to relieve drought and find water, such as making underground water layout maps and sending experts to drought-hit regions to give technical guidance, said the MLR.As of 3 p.m. Thursday, the drought had affected 101.28 million mu (6.75 million hectares) of crops nationwide and left 2.81 million people and 2.57 million livestock short of drinking water, said the Office of State Flood Control and Drought Relief Headquarters.

来源：资阳报