Law enforcement agents should be able to test the toxin found in the letters to determine its potency and purity, as well as learn what chemicals may have been used to extract it from widely available castor beans, said Murray Cohen, the founder of the Atlanta-based Frontline Foundation, which trains workers on preparedness and response to bioterrorism and epidemics.
The Gelede takes place every year after the harvests, at important events and during drought or epidemics and is characterized by carved masks, dances and chants, sung in the Yoruba language and retracing the history and myths of the Yoruba-Nago people.
Vaccines are developed for polio, TB, AIDS, bird-flu and mad-cow type epidemics and pandemics that periodically threaten to envelop the world, with the feared trends actually resulting not in annihilation of the human species, but in an improvement in life expectancies.
Yet, this data could help us and the medical community better address the rising obesity and diabetes epidemics.
The changes could not be explained by other factors - such as mother's age and socioeconomic status or population effects such as changes in air pollution and influenza epidemics.
We use the word virus deliberately to make the analogy with disease bearing vectors and in the absence of a sufficiently large number of hosts epidemics and pandemics simply die out.
China and India are now battling epidemics of diabetes and obesity, and 1.4 billion globally are considered overweight. 90 percent of water used in developing nations goes to agriculture, and yet a full third of what is grown is wasted.
Soon mobile technology could play a large role in detecting, mapping and responding to epidemics.
Research institutions can spot storm systems, epidemics and other critical patterns in their formative stages.
America, for example, has asked that only drugs for AIDS, malaria, tuberculosis and other infectious epidemics be included.
The authors observe that the world needs the social sciences more than ever, in order to confront the major challenges facing humanity, such as poverty, epidemics and climate change.
Studies of norovirus epidemics and human volunteer experiments (yes, there really are people willing to do this) showed that some individuals had natural resistance and this appeared to run in families - it was inherited.
Between 1998 and 2000, this enabled the governments of Botswana, Swaziland and South Africa to detect all epidemics within two weeks, and to respond within two weeks of detection.
Yamir Moreno of the University of Zaragoza, who studies complex networks and spreading patterns of epidemics.
Longini specializes in the mathematical and statistical theory of epidemics.
Now is the time that we should be deepening the links between prevention, research, treatment and care if we are to really make an impact upon silent STI (sexually transmitted infections) epidemics, teenage pregnancies and undiagnosed HIV.
It may have resulted in whooping cough epidemics in California and measles outbreaks in England.
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It is this continual process of genetic drift gives rise to the seasonal epidemics of flu and norovirus.
We were talking about epidemics, pandemics, and plagues, but we were watching the woman.
"At best using single antigens would leave many more children unprotected for extended periods and would raise the likelihood of epidemics, " he said.
In the early 1950s the world was in utter terror because a relentless, paralyzing virus was spreading and turning into the cruelest of epidemics.
He never reconciled himself to the Big Bang, nor to the idea that influenza epidemics start in pigs and poultry, not in outer space.
Argentina and Brazil have both suffered crack epidemics.
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This resulted in needless epidemics in many countries, and hundreds of deaths worldwide.
Mr. Patch would surely agree that a major effort to preventing war and human suffering must be to support continued medical research, especially to ameliorate emerging epidemics such as worldwide "Lyme Disease", drug-resistant malaria and tuberculosis, and parasitism.
But Scott Zeger, the head of the department of biostatistics at Johns Hopkins, who performed the statistical analysis in the study, points out that clustered sampling is the rule rather than the exception in public-health studies, and that the patterns of deaths caused by epidemics are also very variable by location.
In some southern African countries, half of new mothers could soon die of AIDS. Epidemics are emerging in China, India, eastern Europe and countries in the former Soviet Union.
Malaria epidemics were once commonplace in places as far north as Russia and Finland.
He found that epidemics only have a big economic effect if they are pervasive and protracted.
She will deal with security and policing, as well as national emergencies ranging from forest fires to epidemics.
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