Public Health England (PHE) have reported three further cases of blood poisoning in the region's hospitals.
There is one confirmed case at Peterborough City Hospital. PHE said there is a baby with clinical symptoms and a positive test for Bacillus cereus.
There is a probable case at Southend University Hospital, tests have yet to confirm this is the case, and there was a possible case at Basildon University Hospital but blood testing did not confirm the infection
The babies, who became unwell last week, are responding to antibiotic treatment.
In a statement PHE said: "No new cases have occurred since Tuesday 2 June, when the batches of the affected stock expired, however there is a possibility that babies who developed an infection last week or over the weekend will be reported as a result of our investigations."
The manufacturer of the infected supplies recalled the product on Wednesday. The manufacturer is co-operating fully with the investigation.
The suspected contaminated batch of a food supplement linked to the blood poisoning of 17 babies, was sent to 22 hospitals.Read the full story ›
The new NHS England Chief Executive, who grew up in Birmingham, has been back in the region to visit his own childhood GP practice.
Simon Stevens was at the Harlequin Surgery in Shard End, to see the changes that have taken place over the years.
He succeeds Sir David Nicholson, who was surrounded by controversy over the Stafford Hospital scandal.
Mr Stevens says he wants to hear how the NHS is coping first-hand from the staff themselves.
The heart doctor turned whistleblower who won his unfair dismissal case said he felt he needed to speak out because the trust repeatedly ignored his complaints about the treatment of patients.
Dr Raj Mattu told BBC Radio 4's Today programme:
I was rather concerned that the reason I came into medicine, which was to care for patients and to hopefully save lives, was not a priority or certainly a primary aspect of what managers in the hospital in Coventry were focused on.
Patient safety was regularly put at risk and patients were dying that I felt would not have died at other hospitals I had worked at.
A heart doctor turned whistleblower who exposed NHS safety fears said he felt "vindicated" after winning an unfair dismissal case following a long dispute with hospital bosses.
Cardiologist Raj Mattu claimed there was not enough protection available for whistleblowers in the NHS and added that he wants a meeting with Health Secretary Jeremy Hunt to address his concerns.
Dr Mattu exposed fears for patient safety and overcrowding at Walsgrave Hospital in Coventry in 2001, claiming there may have been avoidable deaths as a result.
He was then "vilified and bullied" by the University Hospital of Coventry and Warwickshire NHS Trust during a years-long "witch hunt", according to his lawyers Ashfords LLP.
A heart doctor, cleared of any wrongdoing after being sacked for whistle-blowing, has claimed he is relieved he has won his case, after a damaging 13 years.
Dr Raj Mattu was suspended in 2001 after he spoke out about two patients dying in overcrowded bays at Walsgrave Hospital in Coventry.
I am relieved that I have won my case. My treatment by the trust over the past 13 years has damaged my health, my professional reputation and my livelihood and its effects on my personal and private life have been devastating.
I can only hope that the NHS learns from my case and starts to listen to its doctors and nurses who raise concerns.
After winning a disciplinary hearing in 2008 he was reinstated, but continued to experience hostility from management, his lawyers said. He launched grievance procedures in 2009.
Dr Mattu was sacked by the Trust which runs the hospital in 2010 after counter-allegations of bullying and breach of confidentiality.
The Trust says it is considering appealing the tribunal's decision.
A cardiologist, who was sacked after becoming a whistleblower, has been cleared of any wrongdoing.
Dr Raj Mattu spoke out about two patients dying in overcrowded bays at Walsgrave Hospital in Coventry in 2001.
The NHS Trust which runs the hospital says it is considering appealing the tribunal's decision.
The Department of Health has admitted the NHS will collapse if improvements are not made to health and social care.Read the full story ›
Jason Dorsett, finance director at Monitor says: "It's a tough financial climate for the NHS at the moment. The government has put more money into the NHS but the population is getting larger, people are getting older so that money has got to go further every year.
"So what we're finding is not that foundation trusts are in great difficulties, but there are closer to the margin, they've got less surplus to go around."
A study from Monitor, which regulates England's 147 foundation trusts, said 39 trusts are now in deficit, almost double the 21 in the same period last year and more than the 24 expected.
The combined financial hole of these trusts is £180 million - higher than the £168 million anticipated, with 60% of the deficit concentrated in five organisations. A further 17 trusts have "very small" deficits.
The Midlands is the most "financially challenged" region, with 14 of its 38 trusts being in deficit, including Peterborough, Mid Staffordshire, Sherwood Forest and Milton Keynes, the report said.
Overall, 40% (33) of acute trusts, 20% (one) of ambulance trusts, 11% (two) of specialist trusts and 7% (three) of mental health trusts are in deficit.