Table 1.

Countries initially reporting child imported cases during influenza pandemic (H1N1-2009)

Country	Report month	Descriptions
Australia [36]	May 2009	The first confirmed Victorian case was reported in a child returning from USA
Argentina [37]	March 2010	First case detected in Chile's Quake-hit area was a 5-year old child
Brazil [38]	May 2009	The first four imported cases were found in young adults who had travelled to Mexico and the USA
China [39]	May 2009	The first imported case was a student returning from Canada. The second and third imported cases were notified in students coming from USA
Ecuador [40]	May 2009	First case of H1N1-2009 was a student aged 13 returning from the USA
France [41]	May 2009	Second imported case was a student aged 17 from Mexico
Italy [42]	May 2009	A 11-year-old male child and a 33-month-old infant were confirmed to be the first and third cases of H1N1-2009 in Rome
Japan [43]	May 2009	Three teenage students and a teacher were confirmed to be the first four imported H1N1-2009 cases after returning from a school trip in Canada
New Zealand [44]	April 2009	The first imported cases in New Zealand arrived in a group of students returning from a visit to Mexico
Portugal [45]	June 2009	Third imported case was a 8-year-old child returning from Toronto
Singapore [46]	June 2009	Eighth case is a 15-year-old Singaporean male who travelled from India to Orlando and Atlanta
Spain [47]	July 2009	13 cases of influenza evacuated from a camp in La Vera. Of the 13 cases, 11 were children
Thailand [48]	May 2009	First imported case was a 17-year-old Thai female student returning from Mexico
United Kingdom [49]	April 2009	First confirmed case, a pupil at a school in England, was imported
United States of America [50]	April 2009	First two cases were identified in two children in California