Infectious disease of emerging pathogen, often novel in its outbreak range or transmission mode
For the medical journal, see Emerging Infectious Diseases (journal).
An emerging infectious disease (EID) is an infectious disease whose incidence has increased recently (in the past 20 years), and could increase in the near future.[2][3] The minority that are capable of developing efficient transmission between humans can become major public and global concerns as potential causes of epidemics or pandemics.[4] Their many impacts can be economic and societal, as well as clinical.[5] EIDs have been increasing steadily since at least 1940.[6]
For every decade since 1940, there has been a consistent increase in the number of EID events from wildlife-related zoonosis. Human activity is the primary driver of this increase, with loss of biodiversity a leading mechanism.[7]
Emerging infections account for at least 12% of all human pathogens.[8] EIDs can be caused by newly identified microbes, including novel species or strains of virus[9] (e.g. novel coronaviruses, ebolaviruses, HIV). Some EIDs evolve from a known pathogen, as occurs with new strains of influenza. EIDs may also result from spread of an existing disease to a new population in a different geographic region, as occurs with West Nile fever outbreaks. Some known diseases can also emerge in areas undergoing ecologic transformation (as in the case of Lyme disease[10]). Others can experience a resurgence as a re-emerging infectious disease, like tuberculosis[11] (following drug resistance) or measles.[12] Nosocomial (hospital-acquired) infections, such as methicillin-resistant Staphylococcus aureus are emerging in hospitals, and are extremely problematic in that they are resistant to many antibiotics.[13] Of growing concern are adverse synergistic interactions between emerging diseases and other infectious and non-infectious conditions leading to the development of novel syndemics.
Many EID are zoonotic,[4] deriving from pathogens present in animals, with only occasional cross-species transmission into human populations.[14] For instance, most emergent viruses are zoonotic[4] (whereas other novel viruses may have been circulating in the species without being recognized, as occurred with hepatitis C[15]).
^Paules CI, Eisinger RW, Marston HD, Fauci AS (2017-12-05). "What Recent History Has Taught Us About Responding to Emerging Infectious Disease Threats". Annals of Internal Medicine. 167 (11): 805–811. doi:10.7326/M17-2496. ISSN 0003-4819. PMID 29132162. S2CID 36800971.
^"Emerging Infectious Diseases - NIOSH Workplace Safety and Health Topic". www.cdc.gov. Centers for Disease Control and Prevention. 17 October 2018. Archived from the original on 18 April 2020.
^A brief guide to emerging infectious diseases and zoonoses. WHO Regional Office for South-East Asia. 2014. hdl:10665/204722. ISBN 9789290224587.
^ abcWoolhouse ME, Gowtage-Sequeria S (2005). "Host Range and Emerging and Reemerging Pathogens". Emerging Infectious Diseases. 11 (12): 1842–7. doi:10.3201/eid1112.050997. PMC 3367654. PMID 16485468.
^Morens DM, Fauci AS (2013). "Emerging infectious diseases: threats to human health and global stability". PLOS Pathogens. 9 (7): e1003467. doi:10.1371/journal.ppat.1003467. PMC 3701702. PMID 23853589.
^Jones K (2008). "Global trends in emerging infectious diseases". Nature. 451 (7181): 990–993. Bibcode:2008Natur.451..990J. doi:10.1038/nature06536. PMC 5960580. PMID 18288193.
^Felicia K (2010). "Impacts of biodiversity on the emergence and transmission of infectious diseases". Nature. 468 (7324): 647–652. Bibcode:2010Natur.468..647K. doi:10.1038/nature09575. PMC 7094913. PMID 21124449.
^Taylor L., et al. (2001). "Risk factors for human disease emergence". Philosophical Transactions of the Royal Society B. 356 (1411): 983–9. doi:10.1098/rstb.2001.0888. PMC 1088493. PMID 11516376.
^Fauci AS (2005). "Emerging and reemerging infectious diseases: the perpetual challenge". Academic Medicine. 80 (12): 1079–85. doi:10.1097/00001888-200512000-00002. PMID 16306276. S2CID 17293745.
^Kilpatrick AM, Dobson AD, Levi T, et al. (2017). "Lyme disease ecology in a changing world: consensus, uncertainty and critical gaps for improving control". Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences. 372 (1722): 20160117. doi:10.1098/rstb.2016.0117. PMC 5413869. PMID 28438910.
^Miquel Porta, Sander Greenland, Miguel Hernán, Isabel dos Santos Silva, John M. Last, eds. (2014). A Dictionary of Epidemiology. Oxford University Press. p. 92. ISBN 978-0-19-997673-7.
^Fraser-bell C (2019). "Global Re-emergence of Measles - 2019 update". Global Biosecurity. 1 (3). doi:10.31646/gbio.43. ISSN 2652-0036.
^Witte W (1997). "Increasing incidence and widespread dissemination of methicillin-resistant Staphylococcus aureus (MRSA) in hospitals in central Europe, with special reference to German hospitals". Clinical Microbiology and Infection. 3 (4): 414–22. doi:10.1111/j.1469-0691.1997.tb00277.x. PMID 11864151.
^"The 2019–2020 Novel Coronavirus (Severe Acute Respiratory Syndrome Coronavirus 2) Pandemic: A Joint American College of Academic International Medicine‑World Academic Council of Emergency Medicine Multidisciplinary COVID-19 Working Group Consensus Paper". ResearchGate. Retrieved May 16, 2020.
^Houghton M (November 2009). "The long and winding road leading to the identification of the hepatitis C virus". Journal of Hepatology. 51 (5): 939–48. doi:10.1016/j.jhep.2009.08.004. PMID 19781804.
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