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Ponnaiah M, Dikid T, Yadav R, Thangaraj JWV, Velusamy S, Vaisakh TP, Babu B, Mishra A, Patel P, Papanna M, Velayudhan A, Sharma R, Shrivastava A, Jain SK, Prasad R, Kumar S, Singh V, Singh SK, Murhekar M. Litchi consumption and missed meals continue to be associated with acute encephalopathy syndrome among children: an investigation of the 2019 outbreak in Muzaffarpur district, Bihar, India. Trans R Soc Trop Med Hyg 2023; 117:45-49. [PMID: 36107937 DOI: 10.1093/trstmh/trac084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 02/25/2022] [Accepted: 08/12/2022] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Muzaffarpur district in Bihar State of India recorded a resurgence of acute encephalopathy syndrome (AES) cases in the summer of 2019 after no reported outbreak in 3 y. Earlier studies generated evidence that litchi consumption and missing the previous evening's meal were associated with AES. We investigated the recent outbreak to understand the risk factors associated with AES. METHODS We conducted a matched case-control study by comparing AES cases with healthy controls from case-households and the neighborhood community for risk factors like missing evening meal and litchi consumption before onset of AES. RESULTS We recruited 61 cases and 239 controls. Compared with the community controls, case-patients were five times more likely to have reported eating litchi in the 7 d preceding the onset of illness (adjusted OR [AOR]=5.1; 95% CI 1.3 to 19) and skipping the previous evening's meal (AOR=5.2; 95% CI 1.4 to 20). Compared with household controls, case-patients were five times more likely to be children aged <5 y (AOR=5.3; 95% CI 1.3 to 22) and seven times more likely to have skipped the previous evening's meal (AOR=7.4; 95% CI 1.7 to 34). CONCLUSIONS Skipping the previous evening's meal and litchi consumption were significantly associated with AES among children in Muzaffarpur and adjoining districts of Bihar.
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Affiliation(s)
- Manickam Ponnaiah
- Indian Council of Medical Research-National Institute of Epidemiology, Chennai, Tamil Nadu, India
| | - Tanzin Dikid
- National Centre for Disease Control, Delhi, India
| | - Rajesh Yadav
- US Centers for Disease Control and Prevention, New Delhi, India
| | | | - Saravanakumar Velusamy
- Indian Council of Medical Research-National Institute of Epidemiology, Chennai, Tamil Nadu, India
| | - T P Vaisakh
- National Centre for Disease Control, Delhi, India
| | - Binoy Babu
- National Centre for Disease Control, Delhi, India
| | | | - Purvi Patel
- National Centre for Disease Control, Delhi, India
| | - Mohan Papanna
- US Centers for Disease Control and Prevention, New Delhi, India
| | | | - Rajeev Sharma
- US Centers for Disease Control and Prevention, New Delhi, India
| | | | - S K Jain
- National Centre for Disease Control, Delhi, India
| | - Ravindra Prasad
- Sri Krishna Medical College & Hospital, Muzaffarpur, Bihar, India
| | - Sanjay Kumar
- Indira Gandhi Institute of Medical Sciences, Patna, Bihar, India
| | - Varsha Singh
- Indira Gandhi Institute of Medical Sciences, Patna, Bihar, India
| | | | - Manoj Murhekar
- Indian Council of Medical Research-National Institute of Epidemiology, Chennai, Tamil Nadu, India
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