登革病毒通过雌性伊蚊的叮咬传播到人类，这要求病毒通过伊蚊的取食传播，通常是一个已感染的患者的血。
The dengue viruses are transmitted to humans through the bite of a female Aedes mosquito, which acquires the viruses while feeding, normally on the blood of an infected person.
例如，在六十米之外它能够闻到人类或动物呼出的二氧化碳，蚊子大多数情况下相对人血而言更喜食动物的血液。
For example, the insects can smell carbon dioxide in the breath of a person or animal from as far away as sixty meters. Mosquitoes often like the blood of animals better than the blood of people.
认为胃石症的发病关键在于胃腑通降失司，气滞、食停、痰浊、血瘀为其主要病理因素，临证灵活运用降气消积、化痰祛瘀法，同时辅以软坚散结法可取得显著疗效。
A good curative effect can be gained by using the method of lowering the adverse Qi to removing food stagnancy, resolving phlegm and removing blood stasis and resolving hard lump.
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