Table 2.

A selection of studies reporting outbreaks that predominantly affected adults in India.

Author	Period	VPD	Setting	State/Union territory	Adults/total
Nair et al.24	Apr 2005 to Mar 2006	Meningococcal disease	Tertiary care hospital	Delhi	34a/55
Patel et al.25	Feb to Aug 2009	Hepatitis B	Town	Gujarat	550b/664
Biswas et al.26	Jul to Aug 2010	Influenza A(H1N1)	City	West Bengal	104a/129
Peter et al.27	Jun to Jul 2011	Influenza A(H3N2)	District	Kerala	54a/96
Gurav et al.28	Feb to Apr 2012	Influenza A(H1N1)pdm09	Community	Maharashtra	30c/59
Rathi et al.29	Nov 2013 to Jan 2014	Measles	University	Karnataka	20d/20
Gurav et al.30	July 2014	JE	Region	West Bengal	106c/134
Agrawal et al.31	Jan to Mar 2015	Influenza A(H1N1)pdm09	Tertiary care center	Rajasthan	44 pregnant or puerperal women
Das et al.33	Sep 2015 to Jan 2016	Diphtheria	District	Assam	5e or 7a/10
Meyers et al.34	Feb 2016 to Jan 2017	Varicella	University	Tamil Nadu	77 students (≥17 years)
Rakesh et al.32	Nov to Dec 2016	Hepatitis A	District	Kerala	201d/223
Vaidya et al.35	Dec 2016 to Feb 2017	Varicella	Villages	Dadra and Nagar Haveli	91a/149 suspected; 19a/31 confirmedf

^aAdults defined as ≥15 years old.

^bAdults defined as ≥21 years old.

^cAdults defined as ≥20 years old.

^dAdults defined as ≥16 years old.

^eAdults defined as ≥18 years old.

^fOnly 37/149 suspected cases were tested, of which 31 (84%) were confirmed varicella.

JE, Japanese encephalitis; VPD, vaccine-preventable disease.