Infection and immunity: Session 1: Figure 11 (a) Public health poster on TB prevention in the USA in 1941. (b) Children paralysed by polio in ‘iron lungs’ to help them breathe, USA in the 1950s.

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Infection and immunity

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Figure 11 (a) Public health poster on TB prevention in the USA in 1941. (b) Children paralysed by polio in ‘iron lungs’ to help them breathe, USA in the 1950s.

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