bone marrow
Tissue Sentence Context
Table 1. Analysis of context sentence of nasopharynx tissue in 90 abstracts.
| PMID | Senteces |
|---|---|
| 32125362 | Among the 18 hospitalized patients with PCR-confirmed SARS-CoV-2 infection (median age, 47 years; 9 [50%] women), clinical presentation was an upper respiratory tract infection in 12 (67%), and viral shedding from the nasopharynx was prolonged for 7 days or longer among 15 (83%). |
| 32196430 | Alternatively, repeated testing can be used because over time, the likelihood of the SARS-CoV-2 being present in the nasopharynx increases. |
| 32267109 | The diagnosis is most often based on the detection of the viral genome in the nasopharynx by molecular biology methods. […] Le diagnostic repose, le plus souvent, sur la détection du génome viral au niveau du nasopharynx par des méthodes de biologie moléculaire. |
| 32297828 | In conclusion, relative SARS-CoV-2 RNA load in the nasopharynx is closely related to COVID-19 severity. |
| 32297925 | SARS-CoV-2 RNA was detected in the nasopharynx, oropharynx, stool, saliva, plasma, and urine. […] The highest viral RNA copies in nasopharynx decreased over time while viral load in stool remained high. |
| 32327218 | Otolaryngologists are considered high risk for contracting disease, as the virus resides in the nasal cavity, nasopharynx, and oropharynx. |
| 32342543 | Forty-five surgical procedures were performed for neck nodal metastatic carcinoma of unknown origin (n = 3); carcinoma of tonsil (n = 2), tongue (n = 2), nasopharynx (n = 3), maxilla (n = 1), and laryngopharynx (n = 4). |
| 32351807 | Assessment by polymerase chain reaction (PCR) has provided evidence of the virus in the stool and the oropharynx outside the nasopharynx and respiratory tract. |
| 32358855 | Tracheostomy was performed for patients with carcinoma of tonsil (n = 2) and nasopharynx (n = 1), and aspiration pneumonia (n = 2). |
| 32359869 | Anatomically, viral density is greater in the nasal cavity and the nasopharynx. |
| 32389541 | Oral and maxillofacial surgeons have a unique risk of exposure to SC2 and developing COVID-19 because of our proximity of working in and around the oropharynx and nasopharynx. |
| 32398624 | Factors this impact SARS-CoV-2 transmission include: (1) high viral loads in the mucosa of the oral and nasopharynx, (2) limited and/or imprecise disease screening/confirmation testing, (3) access to and appropriate use of personal protective equipment (PPE). |
| 32406140 | Additionally, hypotheses that the virus could travel from the nasopharynx or through the conjunctival capillaries to the ocular surface during infection are probably incorrect. |
| 32441380 | We recommend to perform NPS after elevation of the tip of the nose in order to reduce the risk of contamination from the nasal vestible, and to let it flow over the floor of the nasal cavity in parallel to the hard palate in order to reach the nasopharynx. |
| 32441753 | They initially shed infectious virus from the upper respiratory tract, but cleared the virus after five to six days in the nasopharynx. |
| 32446866 | The virus may bind to corneal and conjunctival angiotensin converting enzyme 2 (ACE2) receptors and potentially to the lipophilic periocular skin and superficial tear film with downstream carriage into the nasopharynx and subsequent access to the lungs and gut. |
| 32449022 | SARS-CoV-2 is a new pandemic influenza caused by a coronavirus which main route of transmission is through exhaled droplets that primarily infect the nose and the nasopharynx. |
| 32449329 | The viral load was the highest in the nasopharynx (patient 1 = 8.41 log10 copies/mL; patient 2 = 7.49 log10 copies/mL), but it was also remarkably high in the saliva (patient 1 = 6.63 log10 copies/mL; patient 2 = 7.10 log10 copies/mL). |
| 32450770 | Due to the high viral density in the nasal cavity and nasopharynx of patients with COVID-19, basic examinations and common otolaryngology procedures place practitioners at high risk of exposure. |
| 32472898 | Since the rest of the airways are affected, and so is the nose and nasopharynx, it seems possible that the lining of the Eustachian tube, middle ear and mastoid air cell system would all be polluted. |
| 32480136 | Aerosolized SARS-CoV-2 viral particles remain viable for up to 3 hours, raising concern about risk to healthcare workers during aerosol generating procedures (APGs) in the airway and nasopharynx. |
| 32533621 | Oral health-care providers are at an elevated risk of exposure to COVID-19 due to their proximity to nasopharynx of patients, and the practice involving the use of aerosol-generating equipment. |
| 32574894 | The oropharynx and nasopharynx are target sites of SARS CoV 2. |
| 32591652 | The dye was applied topically in the nasal cavity and nasopharynx preoperatively and intraoperatively prior to the use of instruments such as micro-debrider, electrocautery and high-speed drilling. |
| 32614385 | COVID-19 infection confirmed by evidence of severe acute respiratory syndrome coronavirus 2 in the nasopharynx by polymerase chain reaction and laboratory-confirmed influenza A/B. |
| 32628569 | Background: COVID-19 poses a potentially significant infectious risk during procedures of the head and neck due to high viral loads in the nasal cavity and nasopharynx. |
| 32641170 | This paper draws attention to a complication of viral swab testing in the nasopharynx and describes the premature engagement of a viral swab breakpoint, resulting in impaction in the nasal cavity. |
| 32656223 | Conclusions: The quality of nucleic acid testing reagents should be enhanced, and the training of nucleic acid sampling operators should be strengthened to reduce the false-negative results in the nucleic acid of SARS-CoV-2; the clinical specimens of throat and nasopharynx swabs can be collected at the same time; IgM- and IgG-specific antibodies of SARS-CoV-2 should be carried out for discharged patients; the radiological characteristics should be evaluated strictly; and the discharge standard can be specified according to the baseline and severity of disease of patients. |
| 32659620 | Infection by SARS-CoV-2 commonly begins in the nasopharynx, and the cytologic and molecular correlates are not characterized. […] Fifty-eight cytologic preps (20 oral and 38 from the nasopharynx) were obtained from ten patients and analyzed in a blinded fashion for SARS-CoV-2 spike and envelope protein by immunohistochemistry and viral RNA by in situ hybridization. qRTPCR identified three positive cases and seven controls; the three cases reported mild symptoms that resolved in 2-3 days. […] The method outlines a simple, rapid test for productive SARS-CoV-2 based on immunohistochemistry or in situ hybridization of the glandular cells from the nasopharynx. |
| 32667973 | In this study, we investigated the location for the pathogenesis of SARS-CoV-2 from the olfactory epithelium (OE) of the nasopharynx to the olfactory bulb of golden Syrian hamsters. |
| 32728349 | We analyzed the bacterial communities of the nasopharynx in 40 SARS-CoV-2 infected and uninfected patients. |
| 32736887 | In cases of infection, the nasal cavity and nasopharynx have the highest viral load in the body. |
| 32767018 | Post-mortem virology studies detected the presence of SARS-CoV-2 (B.1 lineage) in the nasopharynx, plasma, lung biopsies, pleural effusion and faeces confirming the persistence of viral ribonucleic acid 48 h after death. |
| 32779883 | To test suction mitigation, experiments were performed both with and without a rigid suction placed in the contralateral nostril, terminating in the nasopharynx. |
| 32779964 | The simple placement of a flexible suction instrument in the nasal cavity or nasopharynx led to complete elimination of all aerosols ≤14.1 µm, as evaluated by a cascade impactor positioned immediately at the nares. […] Given the findings regarding aerosol risk reduction, we strongly recommend that physicians use a suction instrument in the nasal cavity or nasopharynx during endonasal surgery in the COVID-19 era. |
| 32780793 | The decision to release an individual from isolation was based on the results of reverse transcription-polymerase chain reaction (RT-PCR) assay from upper respiratory tract specimens (nasopharynx and oropharynx swab) and lower respiratory tract specimens (sputum) for SARS-CoV-2. |
| 32786682 | We have developed a mass-spectrometry-based method for the detection of the SARS CoV-2 virus in nasopharynx epithelial swabs based on the detection of the viral nucleocapsid N protein. |
| 32795090 | Endonasal drilling in the nasopharynx coated with vitamin B2 irrigation yielded aerosols ≤3.30 µm that were fluorescent under UV light. |
| 32838370 | Six aerosol sizes (0.3, 1.0, 2.5, 5, and 10 μm) and total aerosol mass were measured at two feet and six feet from the participant’s nasopharynx. |
| 32864547 | Specialized instruction for nasopharyngeal swabbing improved participants’ knowledge-specifically, the appropriate head position and minimum swab time in nasopharynx-and their confidence. |
| 32901229 | Viral shedding from sources other than nasopharynx and oropharynx, like stools, urine, saliva, semen, and tears, was reported. |
| 32936947 | Our secondary outcomes were: 3) COVID-19 viral content of aerosol (when present); 4) change in COVID-19 viral load at site(s) of irrigation; 5) other adverse events: changes in microbiome in oral cavity, nasal cavity, oro- or nasopharynx; 6) other adverse events: allergy, irritation/burning of nasal, oral or oropharyngeal mucosa (e.g. erosions, ulcers, bleeding), long-term staining of mucous membranes or teeth, accidental ingestion. |
| 32936948 | Our secondary outcomes were: 4) change in COVID-19 viral load in patients; 5) COVID-19 viral content of aerosol (when present); 6) other adverse events: changes in microbiome in oral cavity, nasal cavity, oro- or nasopharynx; 7) other adverse events: allergy, irritation/burning of nasal, oral or oropharyngeal mucosa (e.g. erosions, ulcers, bleeding), long-term staining of mucous membranes or teeth, accidental ingestion. |
| 32936949 | Our secondary outcomes were: 3) viral content of aerosol, when present (if intervention administered to patients); 4) other adverse events: changes in microbiome in oral cavity, nasal cavity, oro- or nasopharynx; 5) other adverse events: allergy, irritation/burning of nasal, oral or oropharyngeal mucosa (e.g. erosions, ulcers, bleeding), long-term staining of mucous membranes or teeth, accidental ingestion. |
| 32979667 | A growing interest in perioperative application of povidone‑iodine (PVP-I) to the nasopharynx and oropharynx has emerged. |
| 32992013 | Viral load is not a critical factor for hospitalisation and mortality whereas outpatients have considerable amount of virus in their nasopharynx that makes them contagious to their contacts. |
| 33020822 | This study reports longitudinal viral RNA loads from nasopharynx/throat in patients with mild and severe/critical COVID-19. |
| 33033405 | At week-4, 56.1% of responders and 30% of non-responders had cleared the SARS-CoV-2 from nasopharynx. |
| 33060117 | Because sampling of the nares or nasopharynx can be variable, repeat testing should be performed swiftly when symptomatic patients are negative. |
| 33068387 | Positive nasopharynx swabs or sputum from newborns was <0.01%. |
| 33070060 | The high viral load in the nasal cavity, nasopharynx and airway subjects Otolaryngologists to a high risk of catching the virus during aerosol generating procedures. |
| 33070578 | Antigenic tests have been shown to be more valid in the days around the onset of symptoms, when the viral load in the nasopharynx is higher. |
| 33078074 | Those who were previously infected with COVID-19 from polymerase chain reaction (PCR) reverse transcriptase (RT) examination obtained via nasopharynx and oropharynx swab, as well as those who were reluctant to participate were excluded from the study. |
| 33084902 | In-house polymerase chain reaction (PCR) tests, commercial antibody tests, nasopharynx or oropharynx PCR deployed by the Michigan Department of Health and Human Services and reverse transcription-PCR tests performed in external labs. |
| 33093026 | Children with asymptomatic SARS-CoV-2 infection had lower levels of virus in their nasopharynx/oropharynx than symptomatic children, but the timing of infection relative to diagnosis likely impacted levels in asymptomatic children. |
| 33100656 | The severe acute respiratory syndrome corona virus 2(SARS-Cov2) virus replicates in the nasal cavity, nasopharynx, and the oropharynx. |
| 33102188 | Health care providers (HCP) of ENT and Skull base surgery are highly vulnerable and mostly infected by novel coronavirus as they have to examine and perform procedures directly in oral cavity, oropharynx, nose, nasopharynx, where coronavirus remains in plenty. |
| 33107144 | Recently, locally applied antiseptic, antiviral, or structure competitive receptor blockers were suggested to attack the virus at its main point of invasion, the nasal mucosa and nasopharynx. |
| 33109269 | Because the reservoir for SARS-CoV-2 shedding is in the nasopharynx and nasal and oral cavities, the application of viricidal agents to these surfaces may reduce virus burden. |
| 33123703 | The highest viral load of SARS-CoV-2 is in the nose and nasopharynx. […] Further, SARS-CoV-2 replicates and continues to shed in the nasopharynx long after the virus is no longer detectable in the lower respiratory tract. |
| 33125907 | Adequate sampling of the nasopharynx is crucial to performing accurate SARS-CoV-2 (COVID) testing. […] Specifically, the number of providers able to localize the nasopharynx increased from 8 providers pre-session to 14 providers post-session (p = 0.04). |
| 33138834 | Of the 20 discharged cases during the isolation period, the positive rate of SARS-CoV-2 RNA was 30% (6/20): 2 cases were positive in sputum at the eighth and ninth day after discharge, respectively, 1 case was positive in nasopharynx swab at the sixth day after discharge, 1 case was positive in anal swab at the eighth day after discharge, and 1 case was positive in 3 specimens (nasopharynx swab, oropharynx swab and sputum) simultaneously at the fourth day after discharge, and no positive SARS-CoV-2 RNA was detected in other specimens including stool, urine and blood at the discharged patients. […] SARS-CoV-2 RNA should be detected in multiple specimens, such as nasopharynx swab, oropharynx swab, sputum, and if necessary, stool and anal swab specimens should be performed simultaneously at discharge when the patients were considered for clinical cure and before releasing the isolation period. |
| 33143753 | There is concern regarding performing endonasal surgical procedures because of a high viral load in the nasopharynx. |
| 33147871 | These results demonstrated the important correlation between He4, IL6 and PSP, an excellent accuracy of He4 and IL6 and showed a probable role of He4 in the innate immunity in particularly at the level of oral cavity, nasopharynx and respiratory tract. |
| 33156390 | A colored pad on the posterior wall of the nasopharynx provides real-time feedback to the user. |
| 33158806 | Monitoring the course of this infection showed that SARS-CoV-2 RNA was detectable in the nasopharynx until day 19 and in stool until day 42 after symptom onset. |
| 33168542 | She developed anti-SARS-CoV-2 IgG antibody after 5 weeks despite persistently shedding the virus in the nasopharynx until 6 weeks after symptom onset. |
| 33209791 | Coronavirus infection often begins in the nasopharynx and destroys the olfactory epithelium. |
| 33213130 | The oro-nasopharynx swab sample for COVID-19 polymerase chain reaction was positive. |
| 33227700 | Severe acute respiratory syndrome (SARS) develops within 3-14 days when CoV2 invades epithelial, myeloid cells in the nasopharynx and pneumocytes in the respiratory tract through angiotensin converting enzyme (ACE2). |
| 33235889 | Our results suggest that it is unnecessary to rotate the swab in place following contact with the nasopharynx and reveal that procedural discomfort levels can differ by ethnicity. |
| 33244161 | The initial host response to this pathogen occurs in a peculiar immune microenvironment that, starting from the Nasopharynx-Associated Lymphoid Tissue (NALT) system, is the product of a long evolutionary process that is aimed to first recognize exogenous airborne agents. |
| 33255751 | Given the vulnerability of the already pretreated neurological structures surrounding the nasopharynx, any potential salvage retreatment option bears a significant risk of severe complications that result in high treatment-related morbidity, quality of life deterioration, and even mortality. |
| 33257876 | By various means, we demonstrate the presence of SARS-CoV-2 RNA and protein in anatomically distinct regions of the nasopharynx and brain. |
| 33268271 | On Day 23, LAMP negative was confirmed in nasopharynx, after that the patient discharged on Day 27. |
| 33288661 | However, IgA dimers, the primary form of antibody in the nasopharynx, were, on average, 15 times more potent than IgA monomers against the same target. |
| 33298894 | Longitudinal characterization of SARS-CoV-2 PCR testing from COVID-19 patient’s nasopharynx and its juxtaposition with blood-based IgG-seroconversion diagnostic assays is critical to understanding SARS-CoV-2 infection durations. |
| 33371153 | The length of viral nucleic acid duration in nasopharynx varied and was irrelevant to the severity of the symptom, whether symptomatic or asymptomatic. |
| 33391931 | Furthermore, multiple reports have demonstrated evidence of viral shedding outside the nasopharynx, including the stool, for prolonged time periods even in the absence of detection of viral RNA in the nasopharynx. |
| 33397432 | General: To assess the virucidal efficacy of povidone iodine (PVP-I) on COVID-19 virus located in the nasopharynx Specific: i. […] To evaluate the efficacy of povidone iodine (PVP-I) to removeCOVID-19 virus located in the nasopharynx ii. |
| 33408504 | This version can be used as face shields for patients, and it allows clinicians to collect swabs from the nasopharynx for virus detection via polymerase chain reaction through pre-cut incisions near the nasal orifices. |
| 33409021 | At the second ED visit, she complained of new-onset stuttering and word-finding difficulties and tested positive for COVID-19 using the polymerase chain reaction (PCR) nasopharynx test. |
| 33427152 | Serial cycle threshold values of SARS-CoV-2 from the nasopharynx of a cohort of infected children were collected for analysis. |
| 33441205 | In order to reveal the epidemic prevention efficacy of masks, this paper systematically evaluates the experimental studies of various masks and filter materials, summarises the general characteristics of the filtration efficiency of isolation masks with particle size, and reveals the actual efficacy of masks by combining the volume distribution characteristics of human exhaled droplets with different particle sizes and the SARS-CoV-2 virus load of nasopharynx and throat swabs from patients. |
| 33443928 | Severe acute respiratory syndrome coronavirus 2 RNA testing of the nasopharynx was positive 2 weeks before presentation and continued to be positive for 30 days. |
| 33509292 | The instructions provided by the majority of provinces and territories in Canada would not be effective in reaching the nasopharynx. |
| 33513195 | In the current non-randomized, observational study we evaluated the SARS-CoV-2 RNA in nasopharynx swabs from infected patients 7-10 days post symptoms with clinically mild disease and compared the viral RNA load dynamics between patients receiving HCQ (200 mg twice per day according to the Ministry of Health of Russian Federation treatment instructions, n = 33) and a control group without antiviral pharmacological therapy (n = 12). |
| 33569970 | In this report, we investigate the radiologic involvement of nasal cavity, nasopharynx, paranasal sinuses, and mastoid cavity in patients with SARS-CoV-2 infection who presented with acute neurological symptoms. […] In patients who present with acute neurological symptoms, COVID-19 infection is characterized by limited and mild mucosal disease within the sinuses, nasopharynx and mastoid cavity. |
| 33572760 | We also provide an insight into the alteration of the transcriptional networks of genes in the nasopharynx associated with the mucociliary clearance apparatus in humans upon infection by severe acute respiratory syndrome coronavirus-2. |
| 33590901 | This trial concluded that combined use of Nitazoxanide, Ribavirin, and Ivermectin plus zinc supplement effectively clear the SARS-COV2 from nasopharynx in shorter time than the symptomatic therapy. |