The number of people who've contracted whooping cough in the South West over the past year has rocketed.
So far this year nearly 850 people here have contracted the illness compared with just 65 last year.
The Health Protection Agency is now urging parents to have their children vaccinated and offering pregnant women jabs to protect their unborn babies.
Here's our Health Correspondent Rebecca Broxton:
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Rishi has the forecast for Devon, Cornwall, Somerset and Dorset.
Rishi has the forecast for Bristol, Wiltshire, Gloucestershire, Dorset and Somerset.
Expect scattered showers tonight. Tomorrow will be similar to today, except there'll be fewer showers. Sunny between the rain. Feeling fresh