Emma-Kate McGrath, who graduated high school at the end of 2016, died on Wednesday.

A VICTORIAN school is in mourning after one of its former students died suddenly from Meningococcal disease in Ballarat.

Loreto College in Ballarat has named the victim as Emma-Kate McGrath, 19, who graduated year 12 at the school last year.

Ms McGrath, who was studying at the Australian Catholic University campus in Ballarat, died suddenly on Wednesday night.

“Our Loreto College community is in mourning as we grieve the tragic loss of our much loved past pupil,” the school said on its Facebook page.

The teenager pictured in 2015.

The teenager pictured in 2015.Source:Facebook

“She was a most vibrant, compassionate and genuine young woman who strived to be the best she could in all areas of her life.”

The Department of Health and Human services said testing is now underway to determine the strain of the disease.

A department spokesman said there was a small chance that the infection may have been spread to others and anyone who has been in close contact with the victim has been offered antibiotics.

“The department is working closely with Ballarat Base Hospital, and is undertaking all necessary public health actions,” the spokesman said on Friday.

Friends of the victim have taken to social media to pay tribute to the teen.

Emma-Kate graduated last year and remained in Ballarat to study at the Australian Catholic University.

Emma-Kate graduated last year and remained in Ballarat to study at the Australian Catholic University.Source:Facebook

“You didn’t deserve this, one of the most beautiful girls I’ve ever met. Rest in peace, you will always be in our hearts,” Gabby Kernick wrote on Facebook. “RIP. We’ll all miss you. I hope all friends and family are alright,” Candace Martin wrote.

A spokeswoman from ACU said the university would not be making a statement regarding the death.

Victoria has had 23 confirmed cases of invasive meningococcal disease so far this year.

Last year Melbourne teen Matthew Wilkins died of the disease less than two weeks after completing his Year 12 exams.

MENINGOCOCCAL FACTS

* Symptoms can include a fever, headaches, loss of appetite and neck stiffness

* Immunisation available most common strains (A, B, C, W and Y)

* Since 2014 there has been an increase in Meningococcal W in Victoria

* Free school-based vaccination program for Meningococcal W for 15 to 19 year olds commenced in term two this year in Victoria.