RÉSUMÉ
L’histoire nous a appris que les émergences virales ne sont pas des phénomènes nouveaux. La variole, venue d’Asie, est probablement apparue en Europe dès le Ve siècle et la fièvre jaune a émergé en Amérique au XVIe siècle, importée d’Afrique par la traite des Noirs. La dengue est apparue au XVIIIe siècle simultanément en Asie du Sud-est, en Afrique et en Amérique du Nord. Quant à la « grippe espagnole », elle a tué, en 1918–1919, entre 25 et 40 millions de personnes dans le monde. La deuxième moitié du XXe siècle a été marquée par de nombreuses émergences virales dont celle du Sida en 1981. Mais, ce qui caractérise l’évolution récente des émergences virales, c’est que non seulement de nouveaux virus émergent de façon répétée, mais qu’ils ont de plus en plus tendance à envahir de nouveaux pays, voire d’autres continents, et de s’y installer de façon plus ou moins durable. Des exemples de cette situation épidémique nouvelle sont donnés avec les infections à virus Nipah, West Nile, de la fièvre de la Vallée du Rift, du SRAS, du monkeypox, de la grippe aviaire H5N1 et Chikungunya. Les causes, multiples et complexes, de ces émergences et réémergences sont brièvement analysées.
Mots-clés: Maladies virales; Virus nipah; Virus wewt nile; Fievre de la vallée du rif; Virus variole, singe; Virus du sras; Virus a de la grippe H5N1; Grippe aviaire; Virus Chikungunya
Key-words (Index medicus): Virus diseases, Nipah virus, West nile virus, Rift valley fever, Monkeypox virus, Sars virus, Influenza a virus H5N1 subtype, Influenza flu, Chikungunhya virus
Abstract
Emerging viral diseases are nothing new. Smallpox probably reached Europe from Asia in the 5th century, and yellow fever emerged in the Americas during the 16th century as a consequence of the African slave trade. Dengue fever arose simultaneously in South-East Asia, Africa, and North America during the 18th century. In 1918–1919 the so-called Spanish ‘flu spread like wildfire through all five continents, killing between 25 and 40 million people. The second half of the 20th century saw the emergence of HIV/AIDS (1981), among other viral diseases. Even more worrying is the fact that emerging and re-emerging viral diseases have had a tendency to spread more quickly and more widely during the last decade, invading whole countries and continents; witness the recent outbreaks of Nipah virus, West Nile, Rift Valley fever, SARS, monkeypox, avianflu (H5N1) and Chikungunya. The complex factors underlying these new trends are briefly discussed.
Footnotes
Tirés à part: Professeur Claude Chastel, 3, rue Rouget de L’Isle, 29200 Brest.
BIBLIOGRAPHIE
- 1.Chastel C. Vuibert ADAPT-SNES; Paris: 2006. Virus émergents: vers de nouvelles pandémies ? [Google Scholar]
- 2.Chua K.B., Bellini W.J., Rota P.A., et al. Nipah virus: a recently emergent deadly paramyxovirus. Science. 2000;288:1432–1435. doi: 10.1126/science.288.5470.1432. [DOI] [PubMed] [Google Scholar]
- 3.Tan C.T., Tan K.S. Nosocomial transmissibility of Nipah virus. J. Infect. Dis. 2001;184:1367. doi: 10.1086/323996. [DOI] [PubMed] [Google Scholar]
- 4.Paton N.I., Leo Y.S., Zaki S.R., et al. Outbreak of Nipah virus infection among abattoir workers in Singapore. Lancet. 1999;354:1253–1256. doi: 10.1016/S0140-6736(99)04379-2. [DOI] [PubMed] [Google Scholar]
- 5.Gurley E.S., Montgomery J.M., Hossain M.J., et al. Person-to-person transmission of Nipah virus in a Bangladeshi community. Emerg. Infect. Dis. 2007;13:1031–1037. doi: 10.3201/eid1307.061128. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 6.Chadha M.S., Comer J.A., Lowe L., et al. Nipah virus — associated encephalitis outbreak, Siliguri, India. Emerg. Infect. Dis. 2006;12:235–240. doi: 10.3201/eid1202.051247. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 7.Guillaume V., Contamin H., Loth, et al. Nipah virus vaccination and passive protection studies in a hamster model. J. Virol. 2004;78:834–840. doi: 10.1128/JVI.78.2.834-840.2004. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 8.Tsai T.F. In: Factors in the emergence of arbovirus diseases. Saluzzo J.F., Bodet B., editors. Elsevier; Paris: 1997. Factor in the changing epidemiology of Japanese encephalitis and West Nile fever; pp. 179–201. [Google Scholar]
- 9.Enserik M. New York’s lethal virus come from Middle East. DNA suggests. Science. 1999;286:1450–1451. doi: 10.1126/science.286.5444.1450. [DOI] [PubMed] [Google Scholar]
- 10.Lanciotti R.S., Roenrig J.T., Deubel V., et al. Origin of the West Nile virus responsible for an outbreak of encephalitis in the northeastern United States. Science. 1999;286:2333–2337. doi: 10.1126/science.286.5448.2333. [DOI] [PubMed] [Google Scholar]
- 11.Rahbek C. The silent of the robins. Nature. 2007;447:652–653. doi: 10.1038/nature05889. [DOI] [PubMed] [Google Scholar]
- 12.Del Guidice P., Schufeenecker I., Vandenbos F., et al. Human West Nile virus. France. Emerg. Infect. Dis. 2004;10:1885–1886. doi: 10.3201/eid1010.031021. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 13.Jouan A., Le Guenno B., Digoutte J.P., et al. An RVF epidemic in southern Mauritania. Ann. Inst. Pasteur / Virol. 1998;139:307–308. doi: 10.1016/s0769-2617(88)80046-7. [DOI] [PubMed] [Google Scholar]
- 14.C.D.C. Outbreak of Rift Valley fever — Saudi Arabia, August-October 2000. Morb. Mort. Weekl. Rep. 2000;49:905–908. [PubMed] [Google Scholar]
- 15.Faye O., Diallo M., Diop D., et al. Rift Valley fever outbreak with East-Central African virus lineage in Mauritania, 2003. Emerg. Infect. Dis. 2007;13:1016–1023. doi: 10.3201/eid1307.061487. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 16.Vabret A. Coronavirus: une émergence réussie. Virologie. 2003;7:237–241. [Google Scholar]
- 17.Xu R.H., He J.F., Evans M.R., et al. Epidemiologic clue to SARS origin in China. Emerg. Infect. Dis. 2004;10:1030–1037. doi: 10.3201/eid1006.030852. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 18.Sleigh A. Politics and disease. Nature. 2005;435:886–887. [Google Scholar]
- 19.TSUI P.T., Kwok M.L., Yuen H., et al. Severe acute respiratory syndrome: clinical outcome and prognostic correlates. Emerg. Infect. Dis. 2003;9:1064–1069. doi: 10.3201/eid0909.030362. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 20.Drosten C., Günther S., Preiser W., et al. Identification of a novel coronavirus in patients with severe acute respiratory syndrome. Science. 2003;300:1394–1399. [Google Scholar]
- 21.Guan Y., Zheng B.J., He Q., et al. Isolation and charaterization of viruses related to the SARS coronavirus from animals in Southern China. Science. 2003;302:276–278. doi: 10.1126/science.1087139. [DOI] [PubMed] [Google Scholar]
- 22.Li W., Shi Z., Yu M., et al. Bats are natural reservoirs of SARS-like coronaviruses. Science. 2005;310:676–679. doi: 10.1126/science.1118391. [DOI] [PubMed] [Google Scholar]
- 23.Chastel C. Quand le monkeypox réussit à s’échapper d’Afrique. Virologie. 2004;8:83–86. [Google Scholar]
- 24.Von Magnus P., Andersen E.K., Petersen K.B., et al. A pox-like disease in Cynomolgus monkeys. Acta. Path. Microbiol. Scand. 1959;46:156–176. [Google Scholar]
- 25.Lasnyj L.D., Ziegler P., Kima E. A human infection caused by monkeypox virus in Basankusu territory, Democratic Republic of Congo. Bull. OMS. 1972;46:593–597. [PMC free article] [PubMed] [Google Scholar]
- 26.Chastel C., Charmot G. Épidémies bactériennes et virales d’origine zoonotique. Rôle de la chasse et du dépeçage d’animaux sauvages. Bull. Soc. Path. Exot. 2004;97:207–212. [PubMed] [Google Scholar]
- 27.W.H.O Human monkeypox — Kasaï Oriental. Democratic Republic of Congo, February 1996-October 1997. Wkly. Epidemiol. Rec. 1997;46:1168–1171. [PubMed] [Google Scholar]
- 28.C.D.C. Multiple outbreak of monkeypox — Illinois, Indiana and Wisconsin. Morb. Mort. Wkly. Rep. 2003;52:537–540. [PubMed] [Google Scholar]
- 29.Hutson C.L., Lee K.N., Abel J., et al. Monkeypox zoonotic associations: insights from laboratory evaluation of animals associated with multistate US outbreak. Am. J. Trop. Med Hyg. 2007;76:757–767. [PubMed] [Google Scholar]
- 30.Reed K.D., Melski J.W., Graham M.B., et al. The detection of monkeypox in humans in Western hemisphere. N Engl. Med. J. 2004;350:342–350. doi: 10.1056/NEJMoa032299. [DOI] [PubMed] [Google Scholar]
- 31.Bernard S.M., Anderson S.A. Qualitative assessment of risk for monkeypox associated with domestic trade in certain animal species. United States. Emerg. Infect. Dis. 2006;12:1827–1833. doi: 10.3201/eid1212.060454. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 32.Chomel B.B., Belotto A., Meslin F.X. Wildlife, exotic pets, and emerging zoonoses. Emerg. Infect. Dis. 2007;13:6–11. doi: 10.3201/eid1301.060480. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 33.F.D.A. Control of communicable diseases; restriction on Africa rodents, prairie dogs, and other animals. Fed. Register. 2007;72:7825–7826. [PubMed] [Google Scholar]
- 34.Subarao K., Klimov A., Kotz J., et al. Characterization of an avian influenza A (H5N1) virus isolated from a child with a fatal respiratory illness. Science. 1998;279:393–396. doi: 10.1126/science.279.5349.393. [DOI] [PubMed] [Google Scholar]
- 35.De Jong J., Claas E., Osterhaus A., et al. A pandemic warning. Nature. 1997;389:554. doi: 10.1038/39218. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 36.Butler D. Bird flu: crossing borders. Nature. 2005;436:310–311. doi: 10.1038/436310a. [DOI] [PubMed] [Google Scholar]
- 37.Ducatez M.F., Tarnagda Z., Tahita M.C., et al. Genetic characterization of HPAI (H5N1) viruses from poultry and wild vultures, Burkina Faso. Emerg. Infect. Dis. 2007;13:611–613. doi: 10.3201/eid1304.061356. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 38.Chastel C. Le virus Chikungunya: son extension récente à l’Île de la Réunion (2005–2006)) Bull. Acad. Natle. Méd. 2005;189:1827–1835. [PubMed] [Google Scholar]
- 39.Parola P., de Lamballerie X., Jourdan J., et al. Novel Chikungunya virus variant in travellers returning from Indian Ocean Islands. Emerg. Infect. Dis. 2006;12:1493–1499. doi: 10.3201/eid1210.060610. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 40.Schuefenecker I., Iteman I., Michault A., et al. Genome microevolution of Chikungunya viruses causing the Indian Ocean outbreak. PLOSMed. 2006;3:1058–1070. doi: 10.1371/journal.pmed.0030263. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 41.Ravi V. Re-emergence of Chikungunya virus in India. Ind. J. Med. Microbiol. 2006;24:83–84. doi: 10.4103/0255-0857.25175. [DOI] [PubMed] [Google Scholar]
- 42.Mudur G. Failure to control mosquitoes has led to two fever epidemics in India. Brit. Med. J. 2006;333:773. doi: 10.1136/bmj.333.7572.773-c. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 43.I.N.V.S . 2007. Cas de Chikungunya importés en Métropole durant l’épidémie à la Réunion. Bilan dela surveillance à partir des données de laboratoire: 1er avril 2005-31 janvier 2007; pp. 1–7. [Google Scholar]
- 44.Eurosurveillance; weekly release Chikungunya risk assessment for Europe. Centre for Disease Prevention and Control, Stockholm, Suède. 2006;11:1–9. [Google Scholar]
- 45.Chastel C. Émergences virales chez l’homme et réussite émergentielle. Virologie. 2000;4:273–279. [Google Scholar]
- 46.Brault A.C., Huang C.Y., Langevin S.A., et al. A single positively selected West Nile viral mutation confers increased virogenosis in Ammerican crows. Nature Genet. 2007;39:1162–1166. doi: 10.1038/ng2097. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 47.Chastel C. Changements climatiques et maladies infectieuses. La lettre de l’infectiologue. 2006;21:258–262. [Google Scholar]