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Detection of SARS-CoV-2 RNA in a conjunctival swab sample in real-time-polymerase chain reaction positive COVID-19 patients and its association with comorbidity and severity at a designated COVID-19 hospital in Central India.
Indian Journal of Ophthalmology ( IF 2.1 ) Pub Date : 2021-12-01 , DOI: 10.4103/ijo.ijo_1604_21
Anagha Chawhan 1 , Ashish Athale 1 , Khalid Khan 1 , Saurabh Agarwal 2 , Rajdeep Paul 2 , Karthik Iyer 1 , Anjali Khadia 3 , Vivek Som 4
Affiliation  

PURPOSE To evaluate the presence of SARS-CoV-2 RNA in the conjunctival swab sample of positive confirmed COVID-19 patients and to find out its association with comorbidity and severity of COVID-19 disease. METHODS We conducted an observational cross-sectional study at a dedicated tertiary COVID-19 hospital in central India for a period of 8 weeks from February 2021to March 2021. We included patients who tested positive for SARS-CoV-2 RNA through nasopharyngeal swab and were above 18 years of age. Swab samples have been collected within 48 h of admission. Conjunctival swab was taken from the lower fornix of both eyes and sent to microbiology laboratory for real-time- polymerase chain reaction (RT-PCR). RESULTS Out of 150 patients, conjunctival swab RT-PCR was positive in five patients (3.33%). Two patients had conjunctival manifestations in the form of conjunctivitis but conjunctival swab RT-PCR was negative in those patients. Among the RT-PCR positive patients, two (40%) were from mild, one (20%) was from moderate, and two (40%) were from severe category. No association could be established between conjunctival swab RT-PCR positivity and severity of the disease or associated comorbidity. CONCLUSION Our study provides evidence that SARS-CoV-2 RNA could be detected in conjunctival secretions, and though the risk is relatively low, the eye may act as source of transmission. Extra caution should be taken by healthcare workers, and use of proper precautions like face shields and goggles should be encouraged.

中文翻译:

在印度中部一家指定的 COVID-19 医院检测实时聚合酶链反应阳性 COVID-19 患者的结膜拭子样本中的 SARS-CoV-2 RNA 及其与合并症和严重程度的关系。

目的 评估 SARS-CoV-2 RNA 在 COVID-19 阳性确诊患者的结膜拭子样本中的存在,并找出其与 COVID-19 疾病的合并症和严重程度的关联。方法 我们从 2021 年 2 月至 2021 年 3 月在印度中部的一家专门的三级 COVID-19 医院进行了为期 8 周的观察性横断面研究。我们纳入了通过鼻咽拭子检测出 SARS-CoV-2 RNA 呈阳性并被18岁以上。在入院后 48 小时内采集了拭子样本。从双眼的下穹窿取出结膜拭子并送到微生物实验室进行实时聚合酶链反应(RT-PCR)。结果 在 150 名患者中,5 名患者(3.33%)结膜拭子 RT-PCR 呈阳性。两名患者有结膜炎形式的结膜表现,但这些患者的结膜拭子 RT-PCR 为阴性。在 RT-PCR 阳性患者中,2 例(40%)来自轻度,1 例(20%)来自中度,2 例(40%)来自重度。结膜拭子 RT-PCR 阳性与疾病严重程度或相关合并症之间没有关联。结论 我们的研究提供的证据表明,结膜分泌物中可以检测到 SARS-CoV-2 RNA,尽管风险相对较低,但眼睛可能是传播源。医护人员应格外小心,并应鼓励使用适当的预防措施,例如面罩和护目镜。两名(40%)来自轻度,一名(20%)来自中度,两名(40%)来自重度。结膜拭子 RT-PCR 阳性与疾病严重程度或相关合并症之间没有关联。结论 我们的研究提供的证据表明,结膜分泌物中可以检测到 SARS-CoV-2 RNA,尽管风险相对较低,但眼睛可能是传播源。医护人员应格外小心,并应鼓励使用适当的预防措施,例如面罩和护目镜。两名(40%)来自轻度,一名(20%)来自中度,两名(40%)来自重度。结膜拭子 RT-PCR 阳性与疾病严重程度或相关合并症之间没有关联。结论 我们的研究提供的证据表明,结膜分泌物中可以检测到 SARS-CoV-2 RNA,尽管风险相对较低,但眼睛可能是传播源。医护人员应格外小心,并应鼓励使用适当的预防措施,例如面罩和护目镜。结论 我们的研究提供的证据表明,结膜分泌物中可以检测到 SARS-CoV-2 RNA,尽管风险相对较低,但眼睛可能是传播源。医护人员应格外小心,并应鼓励使用适当的预防措施,例如面罩和护目镜。结论 我们的研究提供的证据表明,结膜分泌物中可以检测到 SARS-CoV-2 RNA,尽管风险相对较低,但眼睛可能是传播源。医护人员应格外小心,并应鼓励使用适当的预防措施,例如面罩和护目镜。
更新日期:2021-11-28
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