XBB mainly invades the respiratory tract, rather than the digestive system.

XBB 主要侵入呼吸道，而不是消化系统。

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。

Then, they face the respiratory tract's first-line defense: the mucociliary escalator.

粘膜纤毛自动扶梯。

There are a lot of upper respiratory tract infections coming coming along with this haze.

伴随着这片烟雾产生了很多上呼吸道感染。

First, the flu virus encounters a new host and makes its way into their respiratory tract.

首先，流感病毒遇到了新的宿主，并进入他们的呼吸道。

By contrast, the entry molecules preferred by influenza viruses are almost exclusive to the upper respiratory tract.

相比之下，流感病毒首选的进入分子几乎只存在于上呼吸道。

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。

Like the rest of the respiratory tract, the walls of the larynx are made up of mucosal epithelium.

和其它呼吸道上皮一样，喉的上皮也是黏膜上皮。

Some infections may also have symptoms that affect areas other than the respiratory tract (extrapulmonary manifestations, see complications).

一些感染也可能有影响呼吸道以外区域的症状（肺外表现，见并发症）。

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。

It is diagnosed by identifying Legionella in a culture from respiratory tract secretions and using a urinary antigen test.

可由呼吸道分泌物培养出军团菌或尿抗原检测确诊。

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。

It's transmitted through the air, replicates in the lower respiratory tract, and is thought to last for days on countertops.

它能通过空气传播，在下呼吸道中自我复制，并被认为可以在一般桌面上存活数日。

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。

They breathed into a sealed box packed with sensitive instruments, and worked out humidity levels in their upper respiratory tracts.

他们向一个密封的盒子里呼气，盒子里装满了敏感的仪器，然后计算出他们上呼吸道的湿度。

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，通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地方。

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。

That includes the airflow in your respiratory tract.

这包括呼吸道中的气流。

Infections are usually mild with upper respiratory tract infection and acute bronchitis common, but it can cause pneumonia in approximately 5-10% of cases.

感染通常较轻，常见上呼吸道感染和急性支气管炎，但在大约 5-10% 的病例中可引起肺炎。