Meningitis can hit people regardless of age or location and it's a disease that can kill extremely quickly.
One man who knows just how devastating it can be is Michael Pattie from Dumfries. He lost his 13 year old son David in 1999. Since then he's been campaigning with Meningitis Research UK to raise the profile of the disease.
Our reporter Fiona McIlwraith went along to meet him.
A group of cyclists raising money for a fund set up in honour of a Dumfries teenager who died from meningitis have completed their charity challenge. The men arrived at John O'Groats on Saturday afternoon.
They rode 1000 miles as part of the Jenna Dempster Superstar Cycle challenge. Jenna, who was 17, died from meningitis 10 years ago.
A group of cyclists have been given a heroes' welcome as they arrived in Dumfries and Galloway.
They are half-way through a 1,000 mile challenge, in memory of a Dumfries teenager who died suddenly from meningitis.
They are riding from Lands End to John O'Groats to raise money for the Jenna Dempster Superstar Fund.
This afternoon, friends and family met them in Moffat - and Hannah McNulty was there too.
Watch her full report below.
The cycle team have arrived in Scotland and are taking a well earned break in Gretna.
They are then heading to Lockerbie where they will stop for lunch before making their way to Moffat.
The Jenna Dempster Superstar Cycle team left Kendal this morning on day six of the cycle challenge.
They hope to arrive in Moffat at around 4pm.
They are hoping to complete their journey on 28th September.
Seven men from Dumfries are taking part in a mammoth charity cycle in memory of Jenna Demspter, who died from meningitis ten years ago.
The group are cycling more than 1,000 miles during the Land's End to John O'Groats challenge.
The men are currently in Cumbria and are hoping to arrive in Moffat at around 4pm this afternoon, where they will be greeted by friends and family.
Jenna Dempster was 17-years-old when she became ill and was taken to hospital. She was diagnosed with meningitis and died six hours later.
Jenna's brother Daniel is joining the team for the last leg of the route, and will cross the finish with them in John O'Groats.
Alison, Daniel and Jenna's mum, says she struggles to sum up what it means:
"Sometimes I struggle to find the words to describe how I feel. What the boys are doing is absolutely amazing and I'm so proud. Myself, my husband John and Daniel can't wait to welcome them into Scotland."
The group have been spent the last six months training, often cycling 60 miles a day, and have been on special nutritional diets in preparation for the cycle.
Gary McCormick, who organised the "Jenna Dempster Superstar Cycle Challenge", said the support they have had from friends and family has been unbelievable:
"We have had help with the bikes, transport, physiotherapists, everything. The support we have had from friends and family has been unreal.
"We want to raise as much money and awareness for meningitis research as possible."
They have so far raised around £5,000 for Meningitis Research.
Our resident GP, Dr Ajay Bedi, goes through the symptoms of Meningitis.
A meningitis charity is warning that thousands of families could suffer if a life-saving vaccine is not implemented by the Government.
It comes as the Meningitis Research Foundation launches its annual awareness week across the country.
Campaigners from south-west Scotland and Cumbria have joined in the fight to try and have a meningitis B vaccine approved for use in the UK.