Some lymphoid organs are in the form of diffuse lymphoid tissue, where they are just a loose arrangement of lymphoid cells and protein, this is typical in the lining of the gastrointestinal and respiratory tract.

一些淋巴器官以弥散淋巴组织的形式存在，它们只是由淋巴细胞和蛋白质松散排列而成，这在胃肠道和呼吸道的内层很典型。

But it did replicate rapidly the respiratory tracts of both cats and ferrets.

但病毒确实在猫和雪貂的呼吸道内迅速繁殖。

Overall the efficacy rates were pretty impressive: GSK's vaccine was about 83 percent effective at preventing infection in the lower respiratory tract in adults 60 and older and 94 percent effective at preventing severe disease.

体疗效非常可观：在预防 60 岁及以上成年人下呼吸道感染方面，葛兰素史克的有效率约为 83%，重症预防率为 94%。

It mainly causes upper respiratory tract infections, and gets its rhino- name, meaning nose, because it commonly causes a runny nose, nasal congestion, and sneezing, as well as a sore throat and cough.

它主要引起上呼吸道感染，其中rhino-表示鼻子；它常导致流鼻涕、鼻塞和打喷嚏，以及喉咙痛和咳嗽的症状。

In the main, though, the virus hitches a ride on droplets of mucus or saliva that come out of the respiratory tracts of infected individuals.

不过，在大多数情况下，这种病毒只是附着在从感染者呼吸道流出的粘液或唾液飞沫上。

Second, it's airborne and infects the upper respiratory tract, which means it's readily spewed back into the air where it can drift from person to person.

其次，它过空气传播感染上呼吸道，这表示它很容易再被喷回到空气中，在人与人之间漂移。

That is harder in winter, for as air gets colder, its capacity to hold waterfalls. Lower humidity tends to dry out the respiratory tract.

在冬天更难，因为随着空气变冷，它容纳水分的能力会减弱。湿度较低会使呼吸道变得干燥。

The virus enters the body through broken skin — even if not visible — the respiratory tract, or mucous membranes — eyes, nose, or mouth.

病毒过破裂的皮肤（即使肉眼看不见）、呼吸道或粘膜、或是眼、鼻或口腔进入人体。

IgA is the main antibody found in breast milk, tears, saliva, and the mucosal secretions of respiratory tract, gastrointestinal tract, and the genitourinary tract.

IgA是乳汁、泪液、唾液中最多的抗体，也是呼吸道黏膜、胃肠粘膜、泌尿生殖道粘膜最常见的抗体。

Acute laryngitis is most common and it's usually due to an upper respiratory tract infection, most often due to a virus.

急性喉炎是最常见的，常由于上呼吸道感染，最常见病因为病毒感染。

Bleach, ammonia, and other products are capable of irritating the animal's respiratory tract, so always keep them in a safe place.

漂白剂、氨水和其他产品会刺激动物的呼吸道，所以一定要把这些清洁产品放在安全的方。

The narrower the respiratory tract is, the stronger the airflow, and the more those relaxed tissues may vibrate, producing sound.

呼吸道越狭窄，气流就越强，那些放松的组织就会振动得越厉害，产生声音。

Infections can occur in the upper or lower respiratory tract, and symptoms may vary depending on the type of infection.

感染可发生在上呼吸道或下呼吸道，症状可能因感染类型而异。

The mucor fungus grows in the respiratory tract and then spreads to the jaw, eyes and eventually the brain.

毛霉菌在呼吸道生长，之后传播到下巴、眼睛，最后传播到大脑。

And if reflux goes into the respiratory tract, GERD might also present with chronic cough or hoarseness.

如果反流入呼吸道，GERD也可能出现慢性咳嗽或声音嘶哑的症状。

Officials said the 88-year-old pope is suffering from a polymicrobial respiratory tract infection but gave few details.

官员们表示，这位88岁的教皇患有多种微生物呼吸道感染，但没有透露太多细节。

Guaifenesin, the most common expectorant, is thought to hydrate mucus by upping fluid secretions in the respiratory tract, making it less sticky and easier to clear out.

愈创甘油醚是最常见的祛痰剂，它被认为是过增加呼吸道中的液体分泌物来滋润粘液，使其不那么粘稠，更容易清除。

Then, upon inhalation, dry air passing through the mask would collect the deposited water and bring it back into the respiratory tract and lungs.

被吸入后过口罩的干燥空气会收集积水并将其带回呼吸道和肺部。

The Vatican says Pope Francis is in stable condition at a hospital being treated for a respiratory tract infection. AP correspondent Julie Walker reports.

梵蒂冈表示，教皇方济各在医院接受呼吸道感染治疗，情况稳定。美联社记者朱莉·沃克（Julie Walker）报道。

This is associated with formation of lung abscesses due to aspiration of microbes from the oropharynx to the lower respiratory tract.

这与肺脓肿的形成有关，而肺脓肿是由于病原微生物从口咽吸入到下呼吸道所致。