For example, in 1952, an outbreak of measles among the Native American inhabitants of Ungava Bay, Quebec, affected 99 percent of the population and killed 7 percent, even though some had the benefit of modern medicine. Cases such as this demonstrate that even diseases that are not normally ...
For example, in 1952 an outbreak of measles among the Native American inhabitants of Ungava Bay. Quebec, af- fected 99 percent of the population and killed 7 percent, even though some had the benefit of modern medicine. Cases such as this demonstrate that even diseases that are not normally...
had said earlier that its vaccine did not work in a larger North American study. Most AIDS researchers agree that vaccines will be the only effective way to control a virus that has killed 28 million people and infected 42 million more worldwide. Two dozen other vaccines are being tested on...
根据下文“to be killed”可知,用洗衣液洗手可以杀死细菌,但不能杀死病毒。“kills”意为“杀死”,符合语境。故选A。7.D【解析】考查形容词辨析。根据上文和语境可知引起肠胃流感的病毒很难被杀死。“difficult”意为“困难的”,符合语境。故选D。8.D【解析】考查连词辨析。根据语境可知,打扫你的房子可以阻止你...
On Wednesday, the OCHA warned that Sudan is now facing the world's most severe hunger crisis, with over half of its population, nearly 26 million people, suffering high levels of acute hunger. Famine has been confirmed in North Darfur State's Zamzam camp, with many other areas at risk, ...
(3) ___ said that TB is now more common in England than it is in less (4) ___ countries such as Rwanda, Iraq, and Guatemala. Tuberculosis is also (5) ___ across the globe. In 2013, it killed 1.5 million people worldwide, and that (6) ___ is rising. Tuberculosis largely (7...
Infectious disease control and prevention relies on a thorough understanding of the factors determining transmission. This article summarizes some of the fundamental principles of infectious disease transmission while highlighting many of the agent, host, and environmental determinants of these diseases that ...
Columbian Exchange, the largest part of a more general process of biological globalization that followed the transoceanic voyaging of the 15th and 16th centuries, particularly in the wake of Christopher Columbus’s voyages that began in 1492. It profound
History is pockmarked with the scars of past zoonotic outbreaks. What have we learned, why are they increasing, and what can we do to avoid them?
2014). The vegetative stage of the mycelium in P. infestans is diploid, while in true fungi it is haploid. However, recent research has shown that in the modern-day lineages the progenies from sexual P. infestans populations are diploid, but the most important pandemic clonal lineages are ...