Upon entering the body, the virus encounters the epithelial cells lining the nasopharynx which is the part of your throat nearest your nose.

病毒进入体内后会遇到鼻咽部的上皮细胞；鼻咽指的是喉咙靠近鼻子的部位。

To enter Japan, travelers need to get a certificate that proves negative results for COVID-19 from nasal swab testing or saliva samples.

入境日本的旅客需持有鼻咽或唾液样本的新冠病毒检测呈阴性的证明。

The full genome sequences from oropharyngeal and nasopharyngeal specimens were identical to one another and were nearly identical to other available 2019-nCoV sequences.

来自口咽和鼻咽标本的全基因组列彼此相， 并且其他可用的 2019-nCoV 列几乎相。

The facial nerve also innervates the sublingual and submandibular glands, which secrete saliva, as well as the lacrimal gland which produces tears, and mucous membranes of the nose, mouth, and nasopharynx.

面时也支配着舌下腺和下颌下腺，它们可以分泌唾液；以及产生眼泪的泪腺，还有口、鼻、鼻咽的粘膜。

Both upper respiratory specimens obtained on illness day 7 remained positive for 2019-nCoV, including persistent high levels in a nasopharyngeal swab specimen (Ct values, 23 to 24).

在患病第 7 天获得的两份上呼吸道标本仍呈 2019-nCoV 阳性， 包括鼻咽拭子标本中的持续高水平（Ct 值， 23 至 24）。

But their presence in the nasopharynx is especially important, as that's where respiratory viruses like SARS-CoV-2 usually enter our bodies, and where scientists believe these viruses can hang out and multiply.

但他们在鼻咽中的存在则尤为显著，因为像新冠病毒这样的呼吸道病毒通常是通过鼻咽进入我们的身体，而科学家们则认为是因为病毒能在此逗留和繁殖。

Serum specimens for both collection dates were negative for 2019-nCoV. Nasopharyngeal and oropharyngeal specimens obtained on illness days 11 and 12 showed a trend toward decreasing levels of virus.

两个采集日期的血清标本均为 2019-nCoV 阴性。 在患病第 11 天和第 12 天采集的鼻咽和口咽标本显示病毒水平呈下降趋势。

To perform RT-PCR, some of the extracted sample from the nasopharyngeal swab is added to a solution containing an enzyme called reverse transcriptase, nucleotides and primers that are complimentary to a specific SARS-CoV-2 target sequence.

RT-PCR的操作步骤是：首先将鼻咽拭子的部分样本加入到含有逆转录酶、核苷酸和引物的溶液中，其中的引物将SARS-CoV-2病毒的目标列互补。