Rounds, dates, target population, and numbers of persons immunized for SIAs by province, 2012.

<p>Rounds, dates, target population, and numbers of persons immunized for SIAs by province, 2012.</p

Weekly distribution of AFP cases <15 years of age by classification in 2011 and 2012 in Ngawa Tibetan and Qiang Autonomous Prefecture, Sichuan Province, China.

<p>Note: VDPV, vaccine-derived poliovirus; AFP, acute flaccid paralysis.</p

Antibody seropositivity of type I, type Π, and type by age group in Ngawa County, Ngawa Tibetan and Qiang Autonomous Prefecture, Sichuan Province, China, 2012.

<p>Antibody seropositivity of type I, type Π, and type by age group in Ngawa County, Ngawa Tibetan and Qiang Autonomous Prefecture, Sichuan Province, China, 2012.</p

Descriptive characteristics of case patients and close contacts in an outbreak of type Π cVDPVs in Ngawa County, Ngawa Tibetan and Qiang Autonomous Prefecture, Sichuan Province, China, August 2011–February 2012.

<p>Descriptive characteristics of case patients and close contacts in an outbreak of type Π cVDPVs in Ngawa County, Ngawa Tibetan and Qiang Autonomous Prefecture, Sichuan Province, China, August 2011–February 2012.</p

Antibody seropositivity of single serotype and combined serotypes by age group in southern Xinjiang Uygur Autonomous Region before SIAs, 2011.

<p>Note: P1: poliovirus serotype 1; P2: poliovirus serotype 2; P3: poliovirus serotype 3.</p

GMTs of P1, P2 and P3 by age group in southern Xinjiang Uygur Autonomous Region before SIAs, 2011.

<p>Note: P1: poliovirus serotype 1; P2: poliovirus serotype 2; P3: poliovirus serotype 3.</p

Distribution of WPV cases and hospitals in which blood specimens were collected in southern Xinjiang Uygur Autonomous Region.

<p>Distribution of WPV cases and hospitals in which blood specimens were collected in southern Xinjiang Uygur Autonomous Region.</p

Antibody seropositivity and GMTs of P1, P2 and P3 by demographic characteristics in southern Xinjiang Uygur Autonomous Region before SIAs, 2011.

<p>Antibody seropositivity and GMTs of P1, P2 and P3 by demographic characteristics in southern Xinjiang Uygur Autonomous Region before SIAs, 2011.</p

Polio antibody seropositivity of single serotype and combined serotypes, and GMTs of P1, P2 and P3 by prefecture in southern Xinjiang Uygur Autonomous Tegion before SIAs, 2011.

<p>Polio antibody seropositivity of single serotype and combined serotypes, and GMTs of P1, P2 and P3 by prefecture in southern Xinjiang Uygur Autonomous Tegion before SIAs, 2011.</p