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((Asymptomatic Infections[MeSH] OR asymptomatic OR presymptomatic) AND ("Novel Coronavirus" OR COVID-19 OR SARS-CoV-2 OR 2019-nCoV))
4,101 results
  • Implementing building-level SARS-CoV-2 wastewater surveillance on a university campus. [Journal Article]
    Sci Total Environ. 2021 Mar 30; 782:146749.Gibas C, Lambirth K, … Munir M
  • The COVID-19 pandemic has been a source of ongoing challenges and presents an increased risk of illness in group environments, including jails, long-term care facilities, schools, and residential college campuses. Early reports that the SARS-CoV-2 virus was detectable in wastewater in advance of confirmed cases sparked widespread interest in wastewater-based epidemiology (WBE) as a tool for mitig…
  • Assessment and management of asymptomatic COVID-19 infection: A Systematic Review. [Review]
    Travel Med Infect Dis. 2021 Apr 07 [Online ahead of print]Barboza JJ, Chambergo-Michilot D, … Rodriguez-Morales AJ
  • CONCLUSIONS: There is no standard treatment for asymptomatic COVID-19 individuals. There are no studies of adequate design to make this decision. It has been shown that most asymptomatic individuals who were followed have recovered, but this cannot be attributed to standard treatment.
  • SARS-CoV-2 infection dynamics in Denmark, February through October 2020: Nature of the past epidemic and how it may develop in the future. [Journal Article]
    PLoS One. 2021; 16(4):e0249733.Rasmussen S, Petersen MS, Høiby N
  • CONCLUSIONS: The results of the model show, that COVID-19 has a low Infection Fatality Rate because the majority of infected persons are either asymptomatic or with few symptoms. A minority of the infected persons, therefore, requires hospitalization. That means that for a given infection pressure of both symptomatic and asymptomatic infected there will be a lower pressure on the capacity of the health care system than previously predicted. Further the epidemic will be difficult to terminate since about 84% of the infected individuals are asymptomatic but still contagious. The model may be useful if a major infection wave occurs in the autumn-winter season as it could make robust estimates both for the scale of an ongoing expanding epidemic and for the expected load on the healthcare system. The simulation may also be useful to evaluate different testing strategies based on estimated infected population sizes. The model can be adjusted and scaled to other regions and countries, which is illustrated with Spain and USA.
  • COVID-19 serology in nephrology healthcare workers. [Journal Article]
    Wien Klin Wochenschr. 2021 Apr 09 [Online ahead of print]Reiter T, Pajenda S, … Schmidt A
  • CONCLUSIONS: Using a broad spectrum of antibody tests the present study revealed inconsistent results for SARS-CoV‑2 seroprevalence among asymptomatic individuals, while this was not the case among COVID-19 patients.
  • Anesthesia and surgery for positive COVID-19 asymptomatic pediatric patients: how long should we wait? [Journal Article]
    Paediatr Anaesth. 2021 Apr 09 [Online ahead of print]Geng-Ramos G, Cronin J, … Pestieau S
  • The worldwide spread of the novel SARS-CoV-2 coronavirus (COVID-19) led to significant challenges for healthcare institutions. Our institution implemented guidelines to protect perioperative staff and patients from exposure to COVID-19, including pre-procedural testing.1 Patients who tested positive SARS-CoV-2 had their elective procedure postponed and quarantined as per Center for Disease Contro…
  • SARS-CoV-2 and Human Immunodeficiency Virus: Pathogen Pincer Attack. [Review]
    HIV AIDS (Auckl). 2021; 13:361-375.Evans N, Martinez E, … Almodovar S
  • Paramount efforts worldwide are seeking to increase understanding of the basic virology of SARS-CoV-2, characterize the spectrum of complications associated with COVID-19, and develop vaccines that can protect from new and recurrent infections with SARS-CoV-2. While we continue learning about this new virus, it is clear that 1) the virus is spread via the respiratory route, primarily by droplets …
  • Considerations and perspectives on digestive diseases during the COVID-19 pandemic: a narrative review. [Journal Article]
    Ann Palliat Med. 2021 Apr 01 [Online ahead of print]Li J, Li C, … Zhou Y
  • Coronavirus disease 2019 (COVID-19) was initially reported in December 2019, and since then it has become a pandemic with newly confirmed cases and deaths increasing continuously. The COVID-19 pandemic has dramatically impacted the organization and execution of activities in the clinical sector. Asymptomatic infections are increasingly being identified when patients seek medical advice for nonres…
  • Comparison and clinical characteristics of COVID-19 between January and February 2020 in Wuhan, China. [Journal Article]
    Ann Palliat Med. 2021 Mar 23 [Online ahead of print]Yang R, Wei J, … Hu K
  • CONCLUSIONS: The condition of patients with onset of illness in January was more serious than that of patients with onset of illness in February 2020. The time of onset of illness was an independent risk factor for in-hospital death comparing January and February 2020. Changing pathogenicity of SARS-CoV-2 and improved healthcare may have contributed to the results, however, more basic research is required to support this hypothesis.
  • Implications of SARS-Cov-2 infection on eNOS and iNOS activity: consequences for the respiratory and vascular systems. [Review]
    Nitric Oxide. 2021 Apr 05 [Online ahead of print]Guimarães L, Rossini CVT, Lameu C
  • Symptoms of COVID-19 range from asymptomatic/mild symptoms to severe illness and death, consequence of an excessive inflammatory process triggered by SARS-CoV-2 infection. The diffuse inflammation leads to endothelium dysfunction in pulmonary blood vessels, uncoupling eNOS activity, lowering NO production, causing pulmonary physiological alterations and coagulopathy. On the other hand, iNOS activ…
  • Snowball Sampling Study Design for Serosurveys Early in Disease Outbreaks. [Journal Article]
    Am J Epidemiol. 2021 Apr 08 [Online ahead of print]Kennedy-Shaffer L, Qiu X, Hanage WP
  • Serological surveys can provide evidence of cases that were not previously detected, depict the spectrum of disease severity, and estimate the proportion of asymptomatic infections. To capture these parameters, survey sample sizes may need to be very large, especially when the overall infection rate is still low. Therefore, we propose the use of "snowball sampling" to enrich serological surveys b…
  • Single-dose BNT162b2 vaccine protects against asymptomatic SARS-CoV-2 infection. [Journal Article]
    Elife. 2021 Apr 08; 10Jones NK, Rivett L, … Weekes MP
  • The BNT162b2 mRNA COVID-19 vaccine (Pfizer-BioNTech) is being utilised internationally for mass COVID-19 vaccination. Evidence of single-dose protection against symptomatic disease has encouraged some countries to opt for delayed booster doses of BNT162b2, but the effect of this strategy on rates of asymptomatic SARS-CoV-2 infection remains unknown. We previously demonstrated frequent pauci- and …
  • [Hypothesis regarding the connections between severe COVID-19 in children and nutrition: a narrative review]. [Journal Article]
    Nutr Hosp. 2021 Apr 08 [Online ahead of print]León-Lara X, Vargas-Castillo A, … Medina-Vera I
  • Coronavirus disease 2019 (COVID-19) is caused by severe acute respiratory syndrome-coronavirus 2 (SARS-CoV-2). Compared with adults, children with SARS-CoV-2 infection may have fewer and less severe symptoms. Gastrointestinal symptoms are commonly reported in children, sometimes as the only manifestation of the disease, and most often manifest as anorexia, diarrhea, nausea and vomiting, or abdomi…
  • Leucocytoclastic vasculitis secondary to COVID-19 infection in a young child. [Journal Article]
    BMJ Case Rep. 2021 Apr 07; 14(4)Kumar G, Pillai S, … Bukulmez H
  • The current case report describes a 13-year-old young boy who presented with purpuric rashes following a completely asymptomatic COVID-19 infection and biopsy-confirmed leucocytoclastic vasculitis, mild haematuria and mild elevation of serum IgA. This case highlights one of the dermatological manifestations of COVID-19 infection which has not been reported so far. Paediatricians should explore th…
  • Detection of SARS-CoV-2 antibodies in pediatric kidney transplant patients. [Journal Article]
    BMC Nephrol. 2021 Apr 07; 22(1):123.Alshami A, Al Attas R, … Al-Quhaidan N
  • CONCLUSIONS: The seroprevalence of SARS-CoV-2 was relatively high (11.1%) in our population. Although all patients were asymptomatic or mildly symptomatic, they mounted a strong humoral immune response that persisted for a few months despite being on triple immunosuppressants. These findings have positive implications regarding vaccination efficacy in this group.
  • A Case of Suspected Radiation Recall Pneumonitis After a COVID-19 Infection. [Case Reports]
    Cureus. 2021 Mar 04; 13(3):e13688.Kurosaki H, Utsumi N, Miura K
  • We present the case of a 78-year-old woman who received definitive radiation therapy for small cell lung cancer three and a half years ago. She was asymptomatic when she tested positive for coronavirus disease 2019 (COVID-19). She then developed a rapid decline in respiratory status on day seven. Chest radiograph revealed a strong shadow at the prior irradiation site. Radiation recall reactions a…
  • COVID-19 as a rare cause of facial nerve neuritis in a pediatric patient. [Case Reports]
    Radiol Case Rep. 2021 Jun; 16(6):1400-1404.Zain S, Petropoulou K, … Mirchia K
  • COVID-19 has been noted to present with neurological symptoms in nearly 30% of patients. While children are more likely to be asymptomatic, neurological involvement has been observed. We present the case of a 23-month-old previously healthy female who was brought to the emergency room for a new-onset facial droop. The patient tested positive for COVID-19 but was otherwise asymptomatic. Magnetic r…
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