To mark World Immunization Week, pictures at the GAVI Alliance's photo exhibition at the UK Houses of Parliament in London show the value of immunisation against diseases such as pneumonia, rotavirus, polio, measles and tetanus, the need for life-saving vaccines, ways in which the antigens are delivered and the challenges of delivery in four Islamic countries: Pakistan, Sudan, Zanzibar in the United Republic of Tanzania and Yemen.

Last updated: 2 Oct 2019

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