The Food Standards Agency (FSA) had advised people not to eat 20g or three-pack eggs with best before dates between 11 July and 7 October 2022.

Kinder Easter egg hunt kits (150g), Kinder Mini eggs (75g), Kinder schokobons (200g) and the 100g Kinder Surprise have now been recalled too. All sweets affected had been made in the same Belgian factory.

Ferrero, which makes Kinder chocolates, said that it had taken the “precautionary decision” to voluntarily extend the recall to these products in the UK and Ireland with best before dates between 20 April 2022 and 21 August 2022.

The chocolate-maker said none of its Kinder products released for sale had tested positive for salmonella, but that it takes the matter “extremely seriously”.

They added that they were aware of Easter coming up, which usually sees a sales boost for Kinder Surprise eggs.

“The company takes food safety extremely seriously and we sincerely apologise for this matter. Our continued commitment to consumer care has driven our decision today to extend the voluntary recall,” the spokesperson said.

No other Ferrero or Kinder products are believed to have been affected.

It comes after about 63 people in the UK and 10 in Ireland, mostly young children, became infected with salmonella in an outbreak linked to the Kinder Surprise treats.

No deaths have been reported in the UK but most cases involved children aged five and under.

Investigations so far have been led by the UK Health Security Agency, Public Health Scotland, Public Health Wales and Public Health Agency Northern Ireland.

Europe’s health agency said on Wednesday it was also looking into dozens of suspected cases of salmonella linked with eating chocolate in at least nine countries including the UK, Germany, France and Belgium.

The Food Standards Agency (FSA) said all the eggs affected had been made in the same factory in Belgium.

It advised people not to eat 20g or three-pack eggs with best before dates between 11 July and 7 October 2022.

Chocolate-maker Ferrero said none of its Kinder products released for sale had tested positive for salmonella.

“We take matters of food safety extremely seriously and we sincerely apologise for this matter,” the firm said.

No deaths have been reported but most of the 63 salmonella cases so far are among children aged five and under.

More cases have reportedly been recorded in Europe, including Ireland, France, Germany, Sweden and the Netherlands.

The FSA said Ferrero was voluntarily recalling the products as a precautionary measure and added it had received no complaints.

It said the firm was working closely with food safety authorities to identify the exact cause of the outbreak.

Other products manufactured by Kinder are not believed to be affected, the FSA said.

The agency said in an alert that investigations by public health bodies “found a link between reported cases of salmonella poisoning across the UK and a specific product produced by the Ferrero company”.

“We know that these particular products are popular with young children, especially as Easter approaches, so we would urge parents and guardians of children to check if any products already in their home are affected by this recall,” said Tina Potter, head of incidents at the FSA.

Dr Lesley Larkin, of the UK Heath Security Agency, said symptoms of salmonellosis, which can include diarrhoea, stomach cramps, nausea, vomiting and fever, “typically resolve themselves within a few days”.

She said symptoms could be more severe, especially in young children and those with weakened immune systems.

Salmonella can be spread from person to person, so Dr Larkin advised anyone with symptoms to wash their hands thoroughly and avoid handling other people’s food.