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Abstract

The current monkeypox virus global spread and lack of data regarding clinical specimens’ infectivity call for examining virus infectivity, and whether this correlates with results from PCR, the available diagnostic tool. We show strong correlation between viral DNA amount in clinical specimens and virus infectivity toward BSC-1 cell line. Moreover, we define a PCR threshold value (Cq ≥ 35, ≤ 4,300 DNA copies/mL), corresponding to negative viral cultures, which may assist risk-assessment and decision-making regarding protective-measures and guidelines for patients with monkeypox.

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/content/10.2807/1560-7917.ES.2022.27.35.2200636
2022-09-01
2024-04-19
http://instance.metastore.ingenta.com/content/10.2807/1560-7917.ES.2022.27.35.2200636
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References

  1. Centers for Disease Control and Prevention (CDC). 2022 Outbreak Cases & Data. Atlanta: CDC; 22 Aug 2022. Available from: https://www.cdc.gov/poxvirus/monkeypox/response/2022
  2. The Lancet. Monkeypox: a global wake-up call. Lancet. 2022;400(10349):337.  https://doi.org/10.1016/S0140-6736(22)01422-2  PMID: 35908560 
  3. Antinori A, Mazzotta V, Vita S, Carletti F, Tacconi D, Lapini LE, et al. , INMI Monkeypox Group. Epidemiological, clinical and virological characteristics of four cases of monkeypox support transmission through sexual contact, Italy, May 2022. Euro Surveill. 2022;27(22).  https://doi.org/10.2807/1560-7917.ES.2022.27.22.2200421  PMID: 35656836 
  4. Kmiec D, Kirchhoff F. Monkeypox: A New Threat? Int J Mol Sci. 2022;23(14):7866.  https://doi.org/10.3390/ijms23147866  PMID: 35887214 
  5. McCollum AM, Damon IK. Human monkeypox. Clin Infect Dis. 2014;58(2):260-7.  https://doi.org/10.1093/cid/cit703  PMID: 24158414 
  6. World Health Organization (WHO). Monkeypox. Geneva: WHO; 19 May 2022. Available from: https://www.who.int/news-room/fact-sheets/detail/monkeypox
  7. Erez N, Achdout H, Milrot E, Schwartz Y, Wiener-Well Y, Paran N, et al. Diagnosis of Imported Monkeypox, Israel, 2018. Emerg Infect Dis. 2019;25(5):980-3.  https://doi.org/10.3201/eid2505.190076  PMID: 30848724 
  8. Mauldin MR, McCollum AM, Nakazawa YJ, Mandra A, Whitehouse ER, Davidson W, et al. Exportation of Monkeypox Virus From the African Continent. J Infect Dis. 2022;225(8):1367-76.  https://doi.org/10.1093/infdis/jiaa559  PMID: 32880628 
  9. Thornhill JP, Barkati S, Walmsley S, Rockstroh J, Antinori A, Harrison LB, et al. , SHARE-net Clinical Group. Monkeypox Virus Infection in Humans across 16 Countries - April-June 2022. N Engl J Med. 2022;387(8):679-91.  https://doi.org/10.1056/NEJMoa2207323  PMID: 35866746 
  10. Lapa D, Carletti F, Mazzotta V, Matusali G, Pinnetti C, Meschi S, et al. , INMI Monkeypox Study Group. Monkeypox virus isolation from a semen sample collected in the early phase of infection in a patient with prolonged seminal viral shedding. Lancet Infect Dis. 2022;22(9):1267-9.  https://doi.org/10.1016/S1473-3099(22)00513-8  PMID: 35931095 
  11. Americo JL, Earl PL, Moss B. Droplet digital PCR for rapid enumeration of viral genomes and particles from cells and animals infected with orthopoxviruses. Virology. 2017;511:19-22.  https://doi.org/10.1016/j.virol.2017.08.005  PMID: 28802157 
  12. Paran N, De Silva FS, Senkevich TG, Moss B. Cellular DNA ligase I is recruited to cytoplasmic vaccinia virus factories and masks the role of the vaccinia ligase in viral DNA replication. Cell Host Microbe. 2009;6(6):563-9.  https://doi.org/10.1016/j.chom.2009.11.005  PMID: 20006844 
  13. Rheinbaden FV, Gebel J. Exner, et al. Environmental resistance, disinfection, and sterilization of poxviruses. In: Schmidt AA, Weber A, Mercer O, editors. Poxviruses. Basel: Birkhäuser Verlag; 2007. p. 397-405.
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