| http://www.w3.org/ns/prov#value | - Dr Mary Ramsay, head of immunisation at the HPA said: ???We usually see a rise in cases of whooping cough every three to four years as the disease peaks in cycles, with 2008 being the last peak year. ???The uptake of the vaccine which protects against whooping cough is very good but it is a highly infectious disease so when there is a case it can spread quickly.
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