Human coronavirus NL63

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Human coronavirus NL63
12985 2013 2210 MOESM6 ESM E.tif
Transmission electron micrograph of HCoV-NL63
Virus classification OOjs UI icon edit-ltr.svg
(unranked): Virus
Realm: Riboviria
Kingdom: Orthornavirae
Phylum: Pisuviricota
Class: Pisoniviricetes
Order: Nidovirales
Family: Coronaviridae
Genus: Alphacoronavirus
Subgenus: Setracovirus
Species:
Human coronavirus NL63

Human coronavirus NL63 (HCoV-NL63) is a species of coronavirus, specifically a Setracovirus from among the Alphacoronavirus genus. It was identified in late 2004 in patients in the Netherlands by Lia van der Hoek and Krzysztof Pyrc [1] using a novel virus discovery method VIDISCA. [2] Later on the discovery was confirmed by the researchers from the Rotterdam, the Netherlands [3] The virus is an enveloped, positive-sense, single-stranded RNA virus which enters its host cell by binding to ACE2. [4] [5] [6] Infection with the virus has been confirmed worldwide, and has an association with many common symptoms and diseases. Associated diseases include mild to moderate upper respiratory tract infections, severe lower respiratory tract infection, croup and bronchiolitis. [7] [8] [9]

Contents

The virus is found primarily in young children, the elderly, and immunocompromised patients with acute respiratory illness. It also has a seasonal association in temperate climates. A study performed in Amsterdam estimated the presence of HCoV-NL63 in approximately 4.7% of common respiratory illnesses. [10] The natural reservoirs are palm civets and bats. [11] Estimates of its divergence from another coronavirus (HCoV-229E) are around 1000 years ago; it has likely circulated in humans for centuries. [12]

The evolution of HCoV-NL63 appears to have involved recombination between an ancestral NL63-like virus circulating in African Triaenops afer bats and a CoV 229E-like virus circulating in Hipposideros bats. [13] Recombinant viruses can arise when two viral genomes are present in the same host cell.

Symptoms

The first cases of the infection with HCoV-NL63 were found in young children with severe lower respiratory tract infections admitted to hospitals. While the clinical presentation of the virus can be severe, it has also been found in mild cases of respiratory infection. The comorbidity of HCoV-NL63 with other respiratory infections, has made the specific symptoms of the virus difficult to pinpoint. A study of clinical symptoms in HCoV-NL63 patients without secondary infection, reported the most common symptoms to be fever, cough, rhinitis, sore throat, hoarseness, bronchitis, bronchiolitis, pneumonia, and croup. [8] An early study investigating children with lower respiratory tract illness, found that HCoV-NL63 was more commonly found in outpatients than hospitalized patients, suggesting that it is a common cold virus similar to HCoV-229E and HCoV-OC43, which generally cause less severe symptoms. [14] However, the high frequency of croup is specific to HCoV-NL63 infection.

Cause

Seasonal distribution of HCoV-NL63 shows a preferential detection in the period between November and March Journal.pmed.0020240.g001.tif
Seasonal distribution of HCoV-NL63 shows a preferential detection in the period between November and March

It is believed that the route of HCoV-NL63 spread is through direct person-to-person transmission in highly populated areas. The virus can survive for up to a week outside of the body in aqueous solutions at room temperature and three hours on dry surfaces. [15] [16] Most people will be infected with a coronavirus in their lifetime, but some populations are more susceptible to HCoV-NL63. These populations include children under the age of 5, the elderly, and immunocompromised individuals. The virus seems to have seasonal incidence, occurring most frequently in the winter months in temperate climates. In more extreme and tropical climates the virus has no preference toward a particular season. Many studies have reported the co-occurrence of HCoV-NL63 with other human coronavirus, Influenza A virus , Human orthopneumovirus (RSV), parainfluenza virus, and Human metapneumovirus (hMPV). [17] [9]

Transmission

As HCoV-NL63 infects the respiratory tract it must be inhaled to get there, and is therefore transmitted by the airborne route. The virus is able to survive for up to seven days in respiratory secretions and remains infectious at room temperature. Once the virus has entered the host, it binds to cellular receptors via its spike proteins. The virus is able to use Angiotensin-converting enzyme 2 (ACE2) as an entry receptor to bind to and enter target cells. [18]

Diagnosis

It is difficult to distinguish between symptoms caused by infection of the HCoV-NL63 virus and those caused by other common human viruses, making diagnosis and detection complex. Reverse transcription polymerase chain reaction of samples collected through nasopharyngeal swab is the most commonly used method for detection of the virus. [9] Viral culture or blood serum testing for antibodies may also be used for the confirmation of infection.

Prevention

The United States Centers for Disease Control and Prevention (CDC) recommends several measures for the prevention of infection with HCoV-NL63 including: washing hands often with soap and water, avoiding close contact with sick individuals, and not touching the eyes, mouth, or nose. [19]

Treatment and prognosis

Treatment for the HCoV-NL63 virus is dependent on the severity of associated symptomology. Most mild to moderate infections will go away on their own. Symptoms can be relieved by taking a pain reliever or fever medication, taking a hot shower, or using a humidifier. Antiviral treatment may be necessary for infected patients that end up in the intensive care unit (ICU) due to acute respiratory infection. Intravenous immunoglobulin is an FDA approved HCoV-NL63 inhibitor that is also used to treat primary immune deficiency, RSV, and Kawasaki disease. [10]

Virology

HCoV-NL63 is one of seven known coronaviruses to infect humans. The other six are: [20]

Recent research

Research published in 2005 by Esper, et al. suggested an association of HCoV-NL63 infection with Kawasaki disease, a systemic vasculitis in childhood that may result in aneurysms of the coronary arteries. [21] In the developed world, Kawasaki disease is the most common cause of acquired heart disease in children. [22] Further analysis of HCoV-NL63 pathogenicity seems warranted, in particular because of recent evidence that this virus uses the same cellular receptor (ACE2) as both SARS-CoV (the causal agent of SARS) and SARS-CoV-2 (the causal agent of COVID-19), [18] the latter of which provokes an eerily similar immune response. HCoV-NL63 has also been found in the intestinal tract of infected individuals and linked to gastroenteritis. [23] This type of infection is the direct result of the viral invasion of the mucosal lining of the intestines. The role of HCoV-NL63 in gastroenteritis is unclear due to typical coinfection with other viruses in this condition. HCoV-NL63 is likely under-detected due its role in many mild to moderate respiratory infections and comorbidity with other disease. Researchers have suggested that more comprehensive, population-based studies are necessary to determine the effects of this virus on systems outside of the respiratory tract.

Related Research Articles

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Coronaviruses are a group of related RNA viruses that cause diseases in mammals and birds. In humans and birds, they cause respiratory tract infections that can range from mild to lethal. Mild illnesses in humans include some cases of the common cold, while more lethal varieties can cause SARS, MERS and COVID-19, which is causing the ongoing pandemic. In cows and pigs they cause diarrhea, while in mice they cause hepatitis and encephalomyelitis.

<span class="mw-page-title-main">SARS-related coronavirus</span> Species of coronavirus causing SARS and COVID-19

Severe acute respiratory syndrome–related coronavirus is a species of virus consisting of many known strains phylogenetically related to severe acute respiratory syndrome coronavirus 1 (SARS-CoV-1) that have been shown to possess the capability to infect humans, bats, and certain other mammals. These enveloped, positive-sense single-stranded RNA viruses enter host cells by binding to the angiotensin-converting enzyme 2 (ACE2) receptor. The SARSr-CoV species is a member of the genus Betacoronavirus and of the subgenus Sarbecovirus.

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Coronaviridae is a family of enveloped, positive-strand RNA viruses which infect amphibians, birds, and mammals. The group includes the subfamilies Letovirinae and Orthocoronavirinae; the members of the latter are known as coronaviruses.

<span class="mw-page-title-main">Angiotensin-converting enzyme 2</span> Exopeptidase enzyme that acts on angiotensin I and II

Angiotensin-converting enzyme 2 (ACE2) is an enzyme that can be found either attached to the membrane of cells (mACE2) in the intestines, kidney, testis, gallbladder, and heart or in a soluble form (sACE2). Both membrane bound and soluble ACE2 are integral parts of the renin–angiotensin–aldosterone system (RAAS) that exists to keep the body's blood pressure in check. While mACE2 does not appear to factor into the harmful phase of RAAS, its existence is vital in order for the enzyme ADAM17 to cleave its extracellular domain to create soluble ACE2 (sACE2). Soluble ACE2 lowers blood pressure by catalyzing the hydrolysis of angiotensin II into angiotensin (1–7) which in turns binds to MasR receptors creating localized vasodilation and hence decreasing blood pressure. This decrease in blood pressure makes the entire process a promising drug target for treating cardiovascular diseases.

<span class="mw-page-title-main">SARS-CoV-1</span> Virus that causes SARS

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<span class="mw-page-title-main">MERS-related coronavirus</span> Species of virus

Middle East respiratory syndrome–related coronavirus (MERS-CoV), or EMC/2012 (HCoV-EMC/2012), is the virus that causes Middle East respiratory syndrome (MERS). It is a species of coronavirus which infects humans, bats, and camels. The infecting virus is an enveloped, positive-sense, single-stranded RNA virus which enters its host cell by binding to the DPP4 receptor. The species is a member of the genus Betacoronavirus and subgenus Merbecovirus.

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<i>Human coronavirus HKU1</i> Species of virus

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<span class="mw-page-title-main">Human coronavirus OC43</span> Species of virus

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References

  1. ↑ van der Hoek, Lia; Pyrc, Krzysztof; Jebbink, Maarten F.; Vermeulen-Oost, Wilma; Berkhout, Ron J. M.; Wolthers, Katja C.; Wertheim-van Dillen, Pauline M. E.; Kaandorp, Jos; Spaargaren, Joke; Berkhout, Ben (April 2004). "Identification of a new human coronavirus". Nature Medicine. 10 (4): 368–373. doi:10.1038/nm1024. ISSN   1546-170X. PMC   7095789 . PMID   15034574.
  2. ↑ Pyrc, Krzysztof; Jebbink, Maarten F.; Berkhout, Ben; van der Hoek, Lia (2008), Cavanagh, Dave (ed.), "Detection of New Viruses by VIDISCA: Virus Discovery Based on cDNA-Amplified Fragment Length Polymorphism", SARS- and Other Coronaviruses: Laboratory Protocols, Methods in Molecular Biology, Totowa, NJ: Humana Press, vol. 454, pp. 73–89, doi:10.1007/978-1-59745-181-9_7, ISBN   978-1-59745-181-9, PMC   7121709 , PMID   19057862 , retrieved 2023-06-09
  3. ↑ Fouchier RA, Hartwig NG, Bestebroer TM, Niemeyer B, de Jong JC, Simon JH, Osterhaus AD (Apr 2004). "A previously undescribed coronavirus associated with respiratory disease in humans". Proc Natl Acad Sci USA. 101 (16): 6212–6216. Bibcode:2004PNAS..101.6212F. doi: 10.1073/pnas.0400762101 . PMC   395948 . PMID   15073334.
  4. ↑ Hofmann, Heike; Pyrc, Krzysztof; van der Hoek, Lia; Geier, Martina; Berkhout, Ben; Pöhlmann, Stefan (2005-05-31). "Human coronavirus NL63 employs the severe acute respiratory syndrome coronavirus receptor for cellular entry". Proceedings of the National Academy of Sciences. 102 (22): 7988–7993. Bibcode:2005PNAS..102.7988H. doi: 10.1073/pnas.0409465102 . ISSN   0027-8424. PMC   1142358 . PMID   15897467.
  5. ↑ "ACE2 angiotensin I converting enzyme 2 - Gene". NCBI. 2020-02-28. Retrieved 2020-03-21. The protein encoded by this gene belongs to the angiotensin-converting enzyme family of dipeptidyl carboxydipeptidases and has considerable homology to human angiotensin 1 converting enzyme. This secreted protein catalyzes the cleavage of angiotensin I into angiotensin 1-9, and angiotensin II into the vasodilator angiotensin 1-7. The organ- and cell-specific expression of this gene suggests that it may play a role in the regulation of cardiovascular and renal function, as well as fertility. In addition, the encoded protein is a functional receptor for the spike glycoprotein of the human coronavirus HCoV-NL63 and the human severe acute respiratory syndrome coronaviruses, SARS-CoV and SARS-CoV-2 (COVID-19 virus).
  6. ↑ Fehr AR, Perlman S (2015). "Coronaviruses: An Overview of Their Replication and Pathogenesis". In Maier HJ, Bickerton E, Britton P (eds.). Coronaviruses. Methods in Molecular Biology. Vol. 1282. Springer. pp. 1–23. doi:10.1007/978-1-4939-2438-7_1. ISBN   978-1-4939-2438-7. PMC   4369385 . PMID   25720466.
  7. ↑ Lia van der Hoek, Krzysztof Pyrc, Ben Berkhout. "Human coronavirus NL63, a new respiratory virus". academic.oup.com. Retrieved 2023-06-09.{{cite web}}: CS1 maint: multiple names: authors list (link)
  8. 1 2 Hoek, Lia van der; Sure, Klaus; Ihorst, Gabriele; Stang, Alexander; Pyrc, Krzysztof; Jebbink, Maarten F.; Petersen, Gudula; Forster, Johannes; Berkhout, Ben; Überla, Klaus (2005-08-23). "Croup Is Associated with the Novel Coronavirus NL63". PLOS Medicine. 2 (8): e240. doi: 10.1371/journal.pmed.0020240 . ISSN   1549-1676. PMC   1188248 . PMID   16104827.
  9. 1 2 3 Abdul-Rasool S, Fielding BC (May 2010). "Understanding Human Coronavirus HCoV-NL63". The Open Virology Journal. 4: 76–84. doi: 10.2174/1874357901004010076 . PMC   2918871 . PMID   20700397.
  10. 1 2 van der Hoek L, Pyrc K, Berkhout B (September 2006). "Human coronavirus NL63, a new respiratory virus". FEMS Microbiology Reviews. 30 (5): 760–73. doi: 10.1111/j.1574-6976.2006.00032.x . PMC   7109777 . PMID   16911043.
  11. ↑ Lim, Yvonne Xinyi; Ng, Yan Ling; Tam, James P.; Liu, Ding Xiang (2016-07-25). "Human Coronaviruses: A Review of Virus–Host Interactions". Diseases. 4 (3): 26. doi: 10.3390/diseases4030026 . ISSN   2079-9721. PMC   5456285 . PMID   28933406. See Table 1.
  12. ↑ Pyrc, K (2006). "Mosaic structure of human coronavirus NL63, one thousand years of evolution". J. Mol. Biol. 364 (5): 964–973. doi:10.1016/j.jmb.2006.09.074. ISSN   0022-2836. PMC   7094706 . PMID   17054987.
  13. ↑ Tao, Y.; Shi, M.; Chommanard, C.; Queen, K.; Zhang, J.; Markotter, W.; Kuzmin, I. V.; Holmes, E. C.; Tong, S. (2017). "Surveillance of Bat Coronaviruses in Kenya Identifies Relatives of Human Coronaviruses NL63 and 229E and Their Recombination History". Journal of Virology. 91 (5). doi:10.1128/JVI.01953-16. PMC   5309958 . PMID   28077633.
  14. ↑ van der Hoek L, Berkhout B (July 2005). "Questions concerning the New Haven coronavirus". The Journal of Infectious Diseases. 192 (2): 350–1, author reply 353–4. doi: 10.1086/430795 . PMC   7110114 . PMID   15962232.
  15. ↑ Florek, Dominik; Burmistrz, Michal; Potempa, Jan; Pyrc, Krzysztof (2014-09-01). "Stability of infectious human coronavirus NL63". Journal of Virological Methods. 205: 87–90. doi:10.1016/j.jviromet.2014.04.001. ISSN   0166-0934. PMC   7113654 . PMID   24747590.
  16. ↑ "Human Coronavirus". Public Health Agency of Canada. 2011-08-19. Retrieved July 22, 2015.
  17. ↑ Golda, Anna; Malek, Natalia; Dudek, Bartosz; Zeglen, Slawomir; Wojarski, Jacek; Ochman, Marek; Kucewicz, Ewa; Zembala, Marian; Potempa, Jan; Pyrc, Krzysztof (2011). "Infection with human coronavirus NL63 enhances streptococcal adherence to epithelial cells". Journal of General Virology. 92 (6): 1358–1368. doi:10.1099/vir.0.028381-0. ISSN   1465-2099. PMC   3168281 . PMID   21325482.
  18. 1 2 Hofmann H, Pyrc K, van der Hoek L, Geier M, Berkhout B, Pöhlmann S (May 2005). "Human coronavirus NL63 employs the severe acute respiratory syndrome coronavirus receptor for cellular entry". Proceedings of the National Academy of Sciences of the United States of America. 102 (22): 7988–93. Bibcode:2005PNAS..102.7988H. doi: 10.1073/pnas.0409465102 . PMC   1142358 . PMID   15897467.
  19. ↑ "About Coronavirus". Center for Disease Control. Retrieved July 22, 2015.
  20. ↑ Leung, Daniel (20 January 2019). "Coronaviruses (including SARS)". Infectious Disease Advisor. Decision Support in Medicine, LLC. Retrieved 1 August 2020.
  21. ↑ Esper F, Shapiro ED, Weibel C, Ferguson D, Landry ML, Kahn JS (February 2005). "Association between a novel human coronavirus and Kawasaki disease". J Infect Dis. 191 (4): 499–502. doi:10.1086/428291. PMC   7199489 . PMID   15655771.
  22. ↑ "Kawasaki Disease". Mayo Clinic. Retrieved July 22, 2015.
  23. ↑ Fielding BC (February 2011). "Human coronavirus NL63: a clinically important virus?". Future Microbiology. 6 (2): 153–9. doi: 10.2217/fmb.10.166 . PMC   7079714 . PMID   21366416.
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