A new vaccine was created against heart attack. It works by stopping the actions of a gene- PCSK9 found in the liver, which prevents the removal of cholesterol in the blood, therefore raising the risk of someone having a heart attack. The injection works by targeting PCSK9, a gene which appears primarily in the liver and regulates levels of harmful cholesterol.

Dr Kiran Musunuru, from the Harvard Stem Cell Institute, said: "Our therapy offers an impact on gene" The injection has been tested on mice where it was found to reduce concentrations of cholesterol by up to 40 per cent within days of being used on the animals.

"They are protected from heart attack, and there are no known adverse consequences. So that led us to reason that if we could find a way to replicate this, we could significantly protect people from heart attack." He also mentioned that the single injection could be a “permanent alteration” for patients and could reduce the occurrence of heart attacks by between 30 and 90 per cent in humans. The injection works by targeting PCSK9 (around 3 per cent of people had mutations of this gene which has an opposite effect), had mutations of this gene which has an opposite effect, with lower than average cholesterol levels which reduces their risk of heart attack by up to 88 per cent.

Our reasoning was that nature has already done the experiment; you have people who have won the genetic lottery," said Dr Musunuru. Moreover, it does not have a negative influence.’ Scientists believe a single injection which reduces the likelihood of heart attacks could be used on humans in 10 years.