America's MedImmune has come up with a nasal spray that USES a live flu virus in a weakened form.

美国生物科技公司Medimmune已经生产出鼻腔喷雾剂，运用的是活性流感病毒的弱化形式。

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The maxillary processes extend in a cephalad direction form the piriform aperture to the lacrimal crest, uniting with the frontal and nasal bones.

上颌骨额突由梨状孔和泪嵴向头侧方向伸出，与额骨和鼻骨相接。

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But, the medications that lately have proven to be the best are the nasal corticosteroids in the form of spray.

但是，最近已被证明是最好的药物是鼻腔喷雾形式的糖皮质激素。

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Nastech Pharmaceutical in Bothell, Wash. is studying a nasal spray form of apomorphine, which may work both above the neck and below the waist.

FORBES: Health

For the nasal spray form of the vaccine, there is evidence of high protection for children aged 6 months to 7 years, inconsistent evidence of protection in adults 60 years of age and older, and a lack of evidence of protection in individuals between 8 and 59 years of age, the study says.

CNN: Flu vaccine attitudes abroad differ from U.S.

In the minutes of its latest meeting the JCVI says the vaccine has "a good safety profile" and may be more widely accepted by parents and children because it is given in the form of a nasal spray.

BBC: Flu vaccines for all children