第30号一般性建议：关于妇女在预防冲突、...
百度 与一年前的房价对比，上个月除广州房价同比上涨了%外，北京、上海、深圳涨幅分别下降%、%、%。
The study of the distribution, incidence, and potential control of a disease.
3 questions from the last 365 days
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What does a virus need to transmit through air between humans?
For now, the avian flu outbreak is said to stop short of a human pandemic because human-to-human transmission has not been observed. However, people are getting sick from contact with infected animals,...
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How is convenience sampling used in healthcare-associated infections prevalence studies?
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Examples of such studies:
Prevalence, Antimicrobial Drug Resistance and Associated Risk Factors of Streptococcus Pneumoniae Bacteria Infection Among
Under-Five Children With Acute Lower ...
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How are sewage, sludge and wastewater natural environments?
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Acinetobacter species can be isolated from such natural environments
as surface water, wastewater and sewage, healthy human skin, plant,
animal and food material as well as domestic appliances.
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