WHO. Listings of WHO’s response to COVID-19 2020. https://www.who.int/news/item/29-06-2020-covidtimeline.

WHO. WHO coronavirus (COVID-19) dashboard. https://covid19.who.int

Behnoush AH, Ahmadi N, Mozafar M, Mirghaderi SP, Azad AJ, Houjaghan AK, et al. Anxiety, depression, and their contributing factors among nurses infected with COVID-19 in Iran: a cross-sectional study. Iranian Red Crescent Med J. 2022;24(2).

Cummings MJ, Baldwin MR, Abrams D, Jacobson SD, Meyer BJ, Balough EM, et al. Epidemiology, clinical course, and outcomes of critically ill adults with COVID-19 in New York city: a prospective cohort study. Lancet. 2020;395(10239):1763–70.

Article  CAS  PubMed  PubMed Central  Google Scholar 

Bandyopadhyay S, Baticulon RE, Kadhum M, Alser M, Ojuka DK, Badereddin Y, et al. Infection and mortality of healthcare workers worldwide from COVID-19: a systematic review. BMJ Global Health. 2020;5(12):e003097.

Article  PubMed  Google Scholar 

Shali M, Behnoush AH, Shabani EA, Khazaeipour Z. Individual and working experiences of healthcare workers infected with COVID-19 A qualitative study. Japan J Nursing Sci. 2022;19(2):12465.

Article  Google Scholar 

Global, regional, and national incidence, prevalence, and years lived with disability for 354 diseases and injuries for 195 countries and territories, 1990–2017: a systematic analysis for the global burden of disease study 2017. Lancet 2018 392(10159):1789–858.

Schimmel J, Manini AF. Opioid use disorder and COVID-19: biological plausibility for worsened outcomes. Subst Use Misuse. 2020;55(11):1900–1.

Article  PubMed  PubMed Central  Google Scholar 

Mansuri Z, Shah B, Trivedi C, Beg U, Patel H, Jolly T. Opioid use disorder treatment and potential interactions with novel COVID-19 medications: a clinical perspective. Primary Care Companion CNS Dis. 2020;22(4):27062.

Google Scholar 

Alexander GC, Stoller KB, Haffajee RL, Saloner B. An epidemic in the midst of a pandemic: opioid use disorder and COVID-19. Ann Intern Med. 2020;173(1):57–8.

Article  PubMed  Google Scholar 

Becker WC, Fiellin DA. When epidemics collide: coronavirus disease 2019 (COVID-19) and the opioid crisis. Ann Intern Med. 2020;173(1):59–60.

Article  PubMed  Google Scholar 

Qeadan F, Mensah NA, Tingey B, Bern R, Rees T, Madden EF, et al. The association between opioids, environmental, demographic, and socioeconomic indicators and COVID-19 mortality rates in the United States: an ecological study at the county level. Archiv Public Health. 2021;79(1):101.

Article  Google Scholar 

Fond G, Pauly V, Leone M, Llorca PM, Orleans V, Loundou A, et al. Disparities in intensive care unit admission and mortality among patients with Schizophrenia and COVID-19: a national cohort study. Schizophr Bull. 2021;47(3):624–34.

Article  PubMed  Google Scholar 

Jeon HL, Kwon JS, Park SH, Shin JY. Association of mental disorders with SARS-CoV-2 infection and severe health outcomes: nationwide cohort study. Br J psychiatry J Mental Sci. 2021;218(6):344–51.

Article  Google Scholar 

Wei Y, Shah R. Substance use disorder in the COVID-19 pandemic a systematic review of vulnerabilities and complications. Pharmaceuticals. 2020;13(7):155.

Article  CAS  PubMed  PubMed Central  Google Scholar 

Kumar N, Janmohamed K, Nyhan K, Martins SS, Cerda M, Hasin D, et al. Substance use and substance use disorder, in relation to COVID-19: protocol for a scoping review. Syst Rev. 2021;10(1):48.

Article  PubMed  PubMed Central  Google Scholar 

Moher D, Liberati A, Tetzlaff J, Altman DG. Preferred reporting items for systematic reviews and meta-analyses: the PRISMA statement. BMJ. 2009;339: b2535.

Article  PubMed  PubMed Central  Google Scholar 

GA Wells BS, D O'Connell, J Peterson, V Welch, M Losos, P Tugwell. The Newcastle-Ottawa Scale (NOS) for assessing the quality of nonrandomised studies in meta-analyses. 2000

Higgins JP, Thompson SG, Deeks JJ, Altman DG. Measuring inconsistency in meta-analyses. BMJ. 2003;327(7414):557–60.

Article  PubMed  PubMed Central  Google Scholar 

Begg CB, Mazumdar M. Operating characteristics of a rank correlation test for publication bias. Biometrics. 1994;50(4):1088–101.

Article  CAS  PubMed  Google Scholar 

Egger M, Davey Smith G, Schneider M, Minder C. Bias in meta-analysis detected by a simple, graphical test. BMJ. 1997;315(7109):629–34.

Article  CAS  PubMed  PubMed Central  Google Scholar 

Baillargeon J, Polychronopoulou E, Kuo YF, Raji MA. The Impact of substance use disorder on COVID-19 outcomes. Psychiatr Serv. 2021;72(5):578–81.

Article  PubMed  Google Scholar 

Velásquez García HA, Wilton J, Smolina K, Chong M, Rasali D, Otterstatter M, et al. Mental health and substance use associated with hospitalization among people with COVID-19: a population-based cohort study. Viruses. 2021;13(11):2196.

Article  PubMed  PubMed Central  Google Scholar 

Vallecillo G, Perelló R, Güerri R, Fonseca F, Torrens M. Clinical impact of COVID-19 on people with substance use disorders. J Public Health. 2021;43(1):9–12.

Article  CAS  Google Scholar 

Allen B, El Shahawy O, Rogers ES, Hochman S, Khan MR, Krawczyk N. Association of substance use disorders and drug overdose with adverse COVID-19 outcomes in New York city: january-october 2020. J Public Health (Oxf). 2021;43(3):462–5.

Article  PubMed  Google Scholar 

Qeadan F, Tingey B, Bern R, Porucznik CA, English K, Saeed AI, et al. Opioid use disorder and health service utilization among COVID-19 patients in the US: a nationwide cohort from the cerner real-world data. EClinicalMedicine. 2021;37: 100938.

Article  PubMed  PubMed Central  Google Scholar 

Wang QQ, Kaelber DC, Xu R, Volkow ND. COVID-19 risk and outcomes in patients with substance use disorders: analyses from electronic health records in the United States. Mol Psychiatry. 2021;26(1):30–9.

Article  CAS  PubMed  Google Scholar 

Jamali Z, Emamian MH, Hashemi H, Fotouh A. The association of opioid use disorder and COVID-19 in shahroud Iran. medrxiv. 2021;02(19):21252093.

Google Scholar 

Riahi T, Sadeghzadeh-Bazargan A, Shokri S, Ahmadvand D, Hassanlouei B, Baghestani A, et al. The effect of opium on severity of COVID-19 infection: an original study from Iran. Med J Islam Repub Iran. 2021;35:115.

PubMed  PubMed Central  Google Scholar 

Joseph DPR, Krovvidi H. Non-respiratory functions of the lung. Contin Educ Anaesth Crit Care Pain. 2013;13(3):98–102.

Article  Google Scholar 

Eisenstein TK. The role of opioid receptors in immune system function. Front Immunol. 2019;10:2904.

Article  CAS  PubMed  PubMed Central  Google Scholar 

Plein LM, Rittner HL. Opioids and the immune system—friend or foe. Br J Pharmacol. 2018;175(14):2717–25.

Article  CAS  PubMed  Google Scholar 

Farhoudian A, Baldacchino A, Clark N, Gerra G, Ekhtiari H, Dom G, et al. COVID-19 and substance use disorders: recommendations to a comprehensive healthcare response an international society of addiction medicine practice and policy interest group position paper. Basic Clin Neurosci. 2020;11(2):133–50.

CAS  PubMed  PubMed Central  Google Scholar 

Saeedi M, Omrani-Nava V, Maleki I, Hedayatizadeh-Omran A, Ahmadi A, Moosazadeh M, et al. Opium addiction and COVID-19: truth or false beliefs. Iran J Psychiatry Behav Sci. 2020;14(2):103509.

Article  Google Scholar 

Volkow ND. Collision of the COVID-19 and addiction epidemics. Ann Intern Med. 2020;173(1):61–2.

Article  PubMed  Google Scholar 

Melamed OC, Hauck TS, Buckley L, Selby P, Mulsant BH. COVID-19 and persons with substance use disorders: Inequities and mitigation strategies. Subst abuse. 2020;41(3):286–91.

Article  Google Scholar 

de Bernardis E, Busà L. A putative role for the tobacco mosaic virus in smokers’ resistance to COVID-19. Med Hypotheses. 2020;143: 110153.

Article  PubMed  PubMed Central  Google Scholar 

Mhatre S, Srivastava T, Naik S, Patravale V. Antiviral activity of green tea and black tea polyphenols in prophylaxis and treatment of COVID-19: a review. Phytomed Int J Phytother Phytopharmacol. 2021;85: 153286.

CAS  Google Scholar 

Enns A, Pinto A, Venugopal J, Grywacheski V, Gheorghe M, Kakkar T, et al. Substance use and related harms in the context of COVID-19: a conceptual model. Health Promot Chron Dis Prevention Canada Res Policy Pract. 2020;40(11–12):342–9.

Google Scholar 

Zheng Z, Peng F, Xu B, Zhao J, Liu H, Peng J, et al. Risk factors of critical & mortal COVID-19 cases: a systematic literature review and meta-analysis. J Infect. 2020;81(2):e16–25.

Article  CAS  PubMed  PubMed Central  Google Scholar 

Namba RS, Singh A, Paxton EW, Inacio MCS. Patient factors associated with prolonged postoperative opioid use after total knee arthroplasty. J Arthroplasty. 2018;33(8):2449–54.

Article  PubMed  Google Scholar 

Kobus AM, Smith DH, Morasco BJ, Johnson ES, Yang X, Petrik AF, et al. Correlates of higher-dose opioid medication use for low back pain in primary care. J Pain. 2012;13(11):1131–8.

Article  PubMed  PubMed Central  Google Scholar 

Buckeridge D, Huang A, Hanley J, Kelome A, Reidel K, Verma A, et al. Risk of injury associated with opioid use in older adults. J Am Geriatr Soc. 2010;58(9):1664–70.

Article  PubMed  Google Scholar 

Ataei M, Shirazi FM, Lamarine RJ, Nakhaee S, Mehrpour O. A double-edged sword of using opioids and COVID-19: a toxicological view. Subst Abuse Treat Prev Policy. 2020;15(1):91.

Article  PubMed  PubMed Central  Google Scholar