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Chickenpox

General information

    • Surveillance since 1990
    • State : active
    • Weekly surveillance : Data are published on a weekly time scale and updated when our weekly report is published
  • Case definition :
    Typical eruption (erythemato-vesicular during 3 to 4 days with a dessication phase) beggining suddenly, with moderale fever (37°5C - 38°C, 100-101°F).
  • Description for each case: age; gender; complications and if so which ones; antiviral treatement.

Lastest data

Data of this indicator are updated each week and available at the same time as the weekly report

Find more data and visualization on pages Data access

Incidence rate of {{name}} in France (mainland) from start of surveillance

Last summaries published in our weekly report

These news have been published using available data until their publication. Due to data consolidation, small variation of incidence values can be observed in the next 3 weeks

In mainland France, last week (2023w11), the incidence rate of Chickenpox cases seen in general practice was estimated at 8 cases per 100,000 inhabitants (95% CI [4 ; 12]). This rate is stable compared to week 2023w10 (consolidated data: 7 [4 ; 10]) and at a level of activity below those usually observed in this period.

At the regional level, the highest incidence rates were noted in: Pays de la Loire (19 [0 ; 53]), Nouvelle-Aquitaine (18 [0 ; 41]) and Hauts-de-France (12 [0 ; 27]).
In mainland France, last week (2023w10), the incidence rate of Chickenpox cases seen in general practice was estimated at 8 cases per 100,000 inhabitants (95% CI [4 ; 12]). This rate is stable compared to week 2023w09 (consolidated data: 11 [7 ; 15]) and at a level of activity below those usually observed in this period.

At the regional level, the highest incidence rates were noted in: Corse (51 [0 ; 149]), Nouvelle-Aquitaine (20 [2 ; 38]) and Grand Est (14 [0 ; 35]).
In mainland France, last week (2023w09), the incidence rate of Chickenpox cases seen in general practice was estimated at 13 cases per 100,000 inhabitants (95% CI [8 ; 18]). This rate is stable compared to week 2023w08 (consolidated data: 12 [8 ; 16]) and at a low level of activity compared to those usually observed in this period.

At the regional level, the highest incidence rates were noted in: Centre-Val de Loire (32 [0 ; 73]), Provence-Alpes-Côte d’Azur (23 [0 ; 47]), Nouvelle-Aquitaine (18 [0 ; 39]) and Hauts-de-France (18 [0 ; 39]).
All publications associated with this disease
  • Launay T, Souty C, Vilcu AM, Turbelin C, Blanchon T, Guerrisi C, Hanslik T, Colizza V, Bardoulat I, Lemaître M, Boëlle PY. Common communicable diseases in the general population in France during the COVID-19 pandemic. PLoS One. 2021. 16(10):e0258391 PubMed
  • Marziano V, Poletti P, Béraud G, Boëlle PY, Merler S, Colizza V. Modeling the impact of changes in day-care contact patterns on the dynamics of varicella transmission in France between 1991 and 2015. PLoS Comput Biol. 2018. 14(8):e1006334 PubMed HAL PMC doi:10.1371/journal.pcbi.1006334
  • Souty C, Boos E, Turbelin C, Blanchon T, Hanslik T, Boëlle PY. Vaccination against varicella as post-exposure prophylaxis in adults: A quantitative assessment. Vaccine. 2015. 33(3):446-50 PubMed HAL doi:10.1016/j.vaccine.2014.11.045
  • Souty C, Turbelin C, Blanchon T, Hanslik T, Le Strat Y, Boelle PY. Improving disease incidence estimates in primary care surveillance systems. Popul Health Metrics. 2014. 12(1):19 PubMed HAL PMC doi:10.1186/s12963-014-0019-8 Link
  • Blaizeau F, Lasserre A, Rossignol L, Blanchon T, Kernéis S, Hanslik T, Levy-Bruhl D. Practices of French family physicians concerning varicella vaccination for teenagers. Med Mal Infect. 2012. 42(9):429-34 PubMed doi:10.1016/j.medmal.2012.07.013
  • Silhol R, Alvarez FP, Arena C, Amoros JP, Flahault A, Hanslik T, Boëlle PY. Micro and macro population effects in disease transmission: the case of varicella. Epidemiol Infect. 2010. 138(4):482-90 PubMed doi:10.1017/S0950268809990896
  • Pelat C,Turbelin C,Bar-Hen A,Flahault A,Valleron AJ. More diseases tracked by using Google Trends. Emerg Infect Dis. 2009. 15(8):1327-8 PubMed PMC doi:10.3201/eid1508.090299
  • Hanslik T, Blanchon T, Alvarez FP. [Immunization of adults against varicella and herpes zoster] Rev Med Interne. 2007. 28(3):166-72 PubMed doi:10.1016/j.revmed.2006.12.004
  • Hanslik T, Boëlle PY, Schwarzinger M, Carrat F, Freedberg KA, Valleron AJ, Flahault A. Varicella in French adolescents and adults: individual risk assessment and cost-effectiveness of routine vaccination. Vaccine. 2003. 21(25-26):3614-22 PubMed doi:10.1016/s0264-410x(03)00405-5
  • Boëlle PY, Hanslik T. Varicella in non-immune persons: incidence, hospitalization and mortality rates. Epidemiol Infect. 2002. 129(3):599-606 PubMed PMC doi:10.1017/s0950268802007720
  • Deguen S, Flahault A. Impact on immunization of seasonal cycle of chickenpox. Eur J Epidemiol. 2000. 16(12):1177-81 PubMed doi:10.1023/a:1010935317612
  • Deguen S, Thomas G, Chau NP. Estimation of the contact rate in a seasonal SEIR model: application to chickenpox incidence in France. Stat Med. 2000. 19(9):1207-16 PubMed doi:10.1002/(sici)1097-0258(20000515)19:9<1207::aid-sim423>3.0.co;2-l
  • Deguen S, Chau NP, Flahault A. Epidemiology of chickenpox in France (1991-1995). J Epidemiol Community Health. 1998. 52 Suppl 1:46S-49S PubMed
  • Flahault A, Farran N, Deguen S. Epidémie de varicelle en France. Bull Epidémiol Hebd. 1995. 33:149-150 Link
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