Government cuts are to blame for exposing NHS services to the cyber-attack which hit computers around the world on Friday, Jeremy Corbyn has said.
To pay for its plans, Labour has said it would take corporation tax to 26 per cent by 2022, bringing in an extra £20 billion, while imposing a "Robin Hood tax" on financial transactions raising another £26 billion and indicating individuals on more than £80,000 a year will face a tax rise.
'This is having a devastating impact on patients who are facing unacceptably long delays in care, and staff who are working under impossible conditions in an NHS at breaking point'.
Speaking at the RCN conference in Liverpool, Mr Corbyn will claim the NHS will be "unrecognisable" after another five years of Conservative government, saying: "Only Labour will put the NHS back on its feet".
The deadline for nominations for this year's election passed last Thursday with 3,303 candidates put forward to contest 650 constituencies across the UK.
Labour calculates that would allow the NHS to take a million people off waiting lists by the end of the parliament by guaranteeing access to treatment within 18 weeks, and to guarantee that patients could always be seen in A&E within four hours.
Seven NHS trusts are still struggling to restore their computers and get back to normal operations while Health Secretary Jeremy Hunt is expected to chair a Cobra meeting later on today with Home Secretary Amber Rudd.
It comes as a draft of the Labour Party's manifesto unveiled last week said Labour would increase funding to general practice.
Secondly, Labour would create a new £500m winter pressures fund to help ensure patients never have to experience a winter crisis like the one of recent months.
"We are putting an extra £10 billion into the NHS and with strong and stable leadership from Theresa May we will be able to secure the strong economy our NHS needs".
But Liberal Democrat shadow health secretary Norman Lamb said: "You can not solve the crisis in our NHS and social care services by simply imposing more top-down targets on staff and plucking numbers out of thin air".
The Labour leader will outline plans to invest more than £5bn-a-year in frontline services, funded by a higher rate of income tax on those earning more than £80,000 a year.
"We will be honest with the public that giving the NHS and social care the funding they need will mean us all chipping in a little more".