The girl, who was named as Natalie Morton, died on Monday shortly after being injected with the Cervarix vaccine at the Blue Coat CofE school in Coventry.

The vaccine, which is made by pharmaceutical giant GlaxoSmithKline, is being administered to schoolgirls as part of a national vaccination programme to protect against the disease.

Health authorities immediately isolated the suspect batch of vaccine which protects against Human Papillomavirus (HPV), a sexually-transmitted virus which is the primary cause of cervical cancer.

"The incident happened shortly after the girl had received her HPV vaccine in the school," said Dr. Caron Grainger, joint head of public health for the National Health Service (NHS) in Coventry and Coventry City Council.

"No link can be made between the death and the vaccine until all the facts are known and a post-mortem takes place."

She added: "We are conducting an urgent and full investigation into the events surrounding this tragedy."

In a statement GSK said it was working with health authorities "to better understand this case, as at this stage the exact cause of this tragic death is unknown.

What power house companies like GlaxoSmithKline will not reveal to you is the fact that they can not be prosecuted or held liable for the deaths they cause, as there lobbying power and billions of dollars have made them immune from responsibility for their actions / products and ultimately puts their profit ahead of human life.