Deiner MS, Lietman TM, McLeod SD, Chodosh J, Porco TC, 2016. Surveillance tools emerging from search engines and social media data for determining eye disease patterns. JAMA Ophthalmol 134: 1024–1027.
Ramirez DA, Porco TC, Lietman TM, Keenan JD, 2017. The epidemiology of conjunctivitis in United States emergency departments: a population-based study. JAMA Ophthalmol 135: 1119–1121.
Deiner MS, McLeod SD, Chodosh J, Oldenburg CE, Fathy CA, Lietman TM, Porco TC, 2018. Clinical age-specific seasonal conjunctivitis patterns and their online detection in twitter, blog, forum, and comment social media posts. Invest Ophthalmol Vis Sci 59: 910–911.
Zhang L, Zhao N, Sha J, Wang C, Jin X, Amer S, Liu S, 2016. Virology and epidemiology analyses of global adenovirus-associated conjunctivitis outbreaks, 1953–2013. Epidemiol Infect 144: 1661–1672.
Patriarca PA, Onorato IM, Sklar VEF, Schonberger LB, Kaminski RM, Hatch MH, Morens DM, Forster RK, 1983. Acute hemorrhagic conjuctivitis: investigation of a large-scale community outbreak in Dade County, Florida. JAMA 249: 1283–1289.
Centers for Disease Control and Prevention (CDC), 2013. Adenovirus-associated epidemic keratoconjunctivitis outbreaks—four states, 2008–2010. MMWR Morb Mortal Wkly Rep 62: 637–641.
Dawson CR, Whitcher JP, Schmidt NJ, 1974. Editorial: acute hemmorhagic conjunctivitis. JAMA 230: 727–728.
Minami K, Otatsume S, Mingle JA, Afoakwa SN, Quarcoopome CO, Konno K, Uchida Y, Kurahashi H, Kono R, 1981. Seroepidemiologic studies of acute hemmorrhagic conjunctivitis virus (enterovirus type 70) in West Africa: I. Studies with human sera from Ghana collected eight years after the first outbreak. Am J Epidemiol 114: 267–273.
Chatterjee S, Quarcoopome CO, Apenteng A, 1970. Unusual type of epidemic conjunctivitis. Brit J Opthal 54: 628–630.
Medina NH, Haro-Muñoz E, Pellini AC, Machado BC, Russo DH, Timenetsky MD, Carmona RC, 2016. Acute hemorrhagic conjunctivitis epidemic in São Paulo state, Brazil, 2011. Rev Panam Salud Publica 39: 137–141.
Chansaenroj J, Vongpunsawad S, Puenpa J, Theamboonlers A, Vuthitanachot V, Chattakul P, Areechokchai D, Poovorawan Y, 2015. Epidemic outbreak of acute haemorrhagic conjunctivitis caused by coxsackievirus A24 in Thailand, 2014. Epidemiol Infect 143: 3087–3093.
Smith AF, Waycaster C, 2009. Estimate of the direct and indirect annual cost of bacterial conjunctivitis in the United States. BMC Ophthalmol 9: 1–11.
Kuo IC, Espinosa C, Forman M, Valsamakis A, 2016. A polymerase chain reaction-based algorithm to detect and prevent transmission of adenoviral conjunctivitis in hospital employees. Am J Ophthalmol 163: 38–44.
Imonikhe R, Flynn TH, Mearza AA, 2011. Determination of seasonal allergic conjunctivitis variation using internet search engine data. Eye (Lond) 25: 1663
Diboulo E, Sié A, Rocklöv J, Niamba L, Yé M, Bagagnan C, Sauerborn R, 2012. Weather and mortality: a 10 year retrospective analysis of the Nouna health and demographic surveillance system, Burkina Faso. Glob Health Action 5: 32–38.
Hong J et al. 2016. Ambient air pollution, weather changes, and outpatient visits for allergic conjunctivitis: a retrospective registry study. Sci Rep 6: 23858.
Burki T, 2013. Infectious diseases in Malian and Syrian conflicts. Lancet Infect Dis 13: 296–297.
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Acute conjunctivitis follows a seasonal pattern. Although its clinical course is typically self-limited, conjunctivitis epidemics incur a substantial economic burden because of missed school and work days. This study investigated seasonal and temporal trends of childhood conjunctivitis in the entire country of Burkina Faso from 2013 to 2016, using routine monthly surveillance from 2,444 government health facilities. A total of 783,314 cases were reported over the 4-year period. Conjunctivitis followed a seasonal pattern throughout the country, with a peak in April. A nationwide conjunctivitis outbreak with a peak in September 2016 was noted (P < 0.001), with an excess number of cases first detected in June 2016. Nationwide passive surveillance was able to detect an epidemic 3 months before its peak, which may aide in allocation of resources for containment and mitigation of transmission in future outbreaks.
Authors’ addresses: Ali Sié, Abdramane Diarra, and Ourohiré Millogo, Centre de Recherche en Sante de Nouna, Nouna, Boucle du Mouhoun, Burkina Faso, E-mails: sieali@yahoo.fr, bdradiarra@yahoo.fr, and ourohire2001@yahoo.fr. Augustin Zongo, National Health Information Systems, Ministry of Health, Ouagadougou, Burkina Faso, E-mail: zongoaugustin@yahoo.fr. Elodie Lebas, Travis C. Porco, Michael S. Deiner, Thomas M. Lietma, Jeremy D. Keenan, and Catherine E. Oldenburg, Francis I. Proctor Foundation, University of California San Francisco, San Francisco, CA, E-mails: elodie.lebas@ucsf.edu, travis.porco@ucsf.edu, michael.deiner@ucsf.edu, tom.lietman@ucsf.edu, jeremy.keenan@ucsf.edu, and catherine.oldenburg@ucsf.edu. Till Bärnighausen, Heidelberg Institute of Public Health, Heidelberg University, Heidelberg, Germany, E-mail: till.baernighausen@uni-heidelberg.de. James Chodosh, Cornea and Refractive Surgery, Massachusetts Eye and Ear Infirmary, Boston, MA, E-mail: james_chodosh@meei.harvard.edu.
Deiner MS, Lietman TM, McLeod SD, Chodosh J, Porco TC, 2016. Surveillance tools emerging from search engines and social media data for determining eye disease patterns. JAMA Ophthalmol 134: 1024–1027.
Ramirez DA, Porco TC, Lietman TM, Keenan JD, 2017. The epidemiology of conjunctivitis in United States emergency departments: a population-based study. JAMA Ophthalmol 135: 1119–1121.
Deiner MS, McLeod SD, Chodosh J, Oldenburg CE, Fathy CA, Lietman TM, Porco TC, 2018. Clinical age-specific seasonal conjunctivitis patterns and their online detection in twitter, blog, forum, and comment social media posts. Invest Ophthalmol Vis Sci 59: 910–911.
Zhang L, Zhao N, Sha J, Wang C, Jin X, Amer S, Liu S, 2016. Virology and epidemiology analyses of global adenovirus-associated conjunctivitis outbreaks, 1953–2013. Epidemiol Infect 144: 1661–1672.
Patriarca PA, Onorato IM, Sklar VEF, Schonberger LB, Kaminski RM, Hatch MH, Morens DM, Forster RK, 1983. Acute hemorrhagic conjuctivitis: investigation of a large-scale community outbreak in Dade County, Florida. JAMA 249: 1283–1289.
Centers for Disease Control and Prevention (CDC), 2013. Adenovirus-associated epidemic keratoconjunctivitis outbreaks—four states, 2008–2010. MMWR Morb Mortal Wkly Rep 62: 637–641.
Dawson CR, Whitcher JP, Schmidt NJ, 1974. Editorial: acute hemmorhagic conjunctivitis. JAMA 230: 727–728.
Minami K, Otatsume S, Mingle JA, Afoakwa SN, Quarcoopome CO, Konno K, Uchida Y, Kurahashi H, Kono R, 1981. Seroepidemiologic studies of acute hemmorrhagic conjunctivitis virus (enterovirus type 70) in West Africa: I. Studies with human sera from Ghana collected eight years after the first outbreak. Am J Epidemiol 114: 267–273.
Chatterjee S, Quarcoopome CO, Apenteng A, 1970. Unusual type of epidemic conjunctivitis. Brit J Opthal 54: 628–630.
Medina NH, Haro-Muñoz E, Pellini AC, Machado BC, Russo DH, Timenetsky MD, Carmona RC, 2016. Acute hemorrhagic conjunctivitis epidemic in São Paulo state, Brazil, 2011. Rev Panam Salud Publica 39: 137–141.
Chansaenroj J, Vongpunsawad S, Puenpa J, Theamboonlers A, Vuthitanachot V, Chattakul P, Areechokchai D, Poovorawan Y, 2015. Epidemic outbreak of acute haemorrhagic conjunctivitis caused by coxsackievirus A24 in Thailand, 2014. Epidemiol Infect 143: 3087–3093.
Smith AF, Waycaster C, 2009. Estimate of the direct and indirect annual cost of bacterial conjunctivitis in the United States. BMC Ophthalmol 9: 1–11.
Kuo IC, Espinosa C, Forman M, Valsamakis A, 2016. A polymerase chain reaction-based algorithm to detect and prevent transmission of adenoviral conjunctivitis in hospital employees. Am J Ophthalmol 163: 38–44.
Imonikhe R, Flynn TH, Mearza AA, 2011. Determination of seasonal allergic conjunctivitis variation using internet search engine data. Eye (Lond) 25: 1663
Diboulo E, Sié A, Rocklöv J, Niamba L, Yé M, Bagagnan C, Sauerborn R, 2012. Weather and mortality: a 10 year retrospective analysis of the Nouna health and demographic surveillance system, Burkina Faso. Glob Health Action 5: 32–38.
Hong J et al. 2016. Ambient air pollution, weather changes, and outpatient visits for allergic conjunctivitis: a retrospective registry study. Sci Rep 6: 23858.
Burki T, 2013. Infectious diseases in Malian and Syrian conflicts. Lancet Infect Dis 13: 296–297.
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