Five babies have died from whooping cough as cases continue to rise in England, health officials have announced.

The UK Health Security Agency (UKHSA) reported 1,319 cases in England in March, after just over 900 in February, making the 2024 total nearly 2,800.

It fears this year could see lots of the bacterial infection. The last peak year, 2016, had 5,949 cases in England.

The infection can be particularly serious for babies and infants.

Half of cases seen so far this year have been in the under-15s, with the highest rates in babies under three months of age.

The five babies who died this year were all under three months old.

These are the first deaths since 2019.

Known as pertussis or “100-day cough”, the infection is a cyclical disease with peaks seen every three to five years.

UKHSA has said a steady decline in uptake of the vaccine in pregnant women and children and the very low numbers seen during the pandemic, as happened with other infections because of restrictions and public behaviour, were both factors.

The agency said a peak year was therefore overdue and urged families to come forward to get vaccinated if they had not already.

In September 2023, the number of two-year-olds who completed their routine six-in-one vaccinations, which includes protection against pertussis, was 92.9%, compared with 96.3% in March 2014.

Uptake of the maternal pertussis vaccine, offered to women in every pregnancy, also dropped – from more than 70% in September 2017 to about 58% in September 2023.

Dr Gayatri Amirthalingam, from UKHSA, said: “Vaccination remains the best defence against whooping cough and it is vital that pregnant women and young infants receive their vaccines at the right time.

“Whooping cough can affect people of all ages, but for very young babies it can be extremely serious.

“Our thoughts and condolences are with those families who have so tragically lost their baby.”

Prof Kamila Hawthorne, chair of the Royal College of GPs, said: “It’s highly concerning that such a high number of whooping cough cases have been confirmed.

“While whooping cough will be an unpleasant and uncomfortable experience for most patients, causing restless nights and leaving those affected with a shortness of breath, for some, it can be far more serious.”