Meningitis (inflammation of the tissues around the brain) and septicaemia (blood poisoning) are two separate serious conditions. Both may be caused by various bacteria, viruses and fungi (germs). However, meningitis and septicaemia often occur together, especially when caused by meningococcal bacteria. If you suspect meningitis or septicaemia - get medical help immediately.
Meningitis and septicaemia are separate diseases. However, the most common cause of bacterial meningitis (the meningococcus) often causes septicaemia at the same time.
Bacterial meningitis is uncommon in the UK. However, it is a serious illness and well-known due to the media coverage when outbreaks occur. Every year around 2,500 cases of bacterial meningitis occur in the UK.
Most cases in the UK are caused by a bacterium called Neisseria meningitidis (meningococcus). Other less common causes include: Streptococcus pneumoniae (pneumococcus), Haemophilus influenzae type b (Hib) and Escherichia coli (E. coli).
Anyone can be affected. However, children under the age of five years, and teenagers are the most at risk from meningococcal meningitis.
Viral meningitis is more common than bacterial meningitis, but exact figures are not known. It is a complication of various viral illnesses. Viral meningitis is usually less serious than a bacterial cause. Most people who develop viral meningitis make a full recovery.
Other germs such as fungi and tuberculosis (TB) are rare causes of meningitis.
Neisseria meningitidis (meningococcus) is a common bacterium and lives harmlessly in the noses and throats of about 1 in 4 people. These people are called carriers. This bacterium does not survive outside the body. Close contact is needed to pass it on to others, such as intimate kissing, coughing, or sneezing near to others.
Rarely, this bacterium overcomes the body's immune system and gets into the blood to cause meningitis and/or septicaemia. It is not clear why a few people are prone to serious illness, and many other people are carriers of the same bacterium but have no ill effect.
Most cases of meningococcal infection are isolated cases. The risk of others catching it is low, as many people are carriers and/or have natural immunity. Sometimes small outbreaks occur when two or more people in the same household or community are affected.
Streptococcus pneumoniae (pneumococcus) is a less common cause of bacterial meningitis. This too is carried in the nose or throat by many people, with no ill effect. Again, meningitis probably occurs due to a breakdown in the immune system. It most commonly occurs in people aged over 45 years, and in babies. Meningitis due to this bacterium is not thought to be contagious.
Other bacteria that less commonly cause meningitis include: Haemophilus influenzae type b (Hib), Escherichia coli (E. coli), listeria and TB. The infection with meningitis from these germs may occur for various reasons, such as a complication of an infection in another part of the body.
A variety of viruses can travel to the meninges and cause inflammation. For example, mumps, herpes, chickenpox, influenza, and many other viral infections sometimes cause viral meningitis.
One or more of the following symptoms may occur:
Note: not all symptoms may occur. For example, the classic symptoms of neck stiffness and rash may not occur. If you suspect meningitis or septicaemia - get medical help immediately.
Many children who are developing meningitis or septicaemia have nonspecific symptoms such as just feeling or looking generally unwell. These symptoms may include having a high temperature, being more tired than usual and feeling sick.
However, three symptoms that commonly develop early on - often before the more classic symptoms listed later - are:
A typical rash is common with meningococcal infection. The rash is red or purple. Small spots develop at first and may occur in groups anywhere on the body. They often grow to become blotchy and look like little bruises. One or two may develop at first, but many may then appear in different parts of the body.
The spots/blotches do not fade when pressed (unlike many other rashes). To check for this do the glass test. Place a clear glass firmly on one of the spots or blotches. If the spot/blotch does not fade and you can still see it through the glass, get medical help immediately.
The rash is a sign of septicaemia. It may not occur with meningitis alone.
Other symptoms that may occur in babies include:
Other symptoms that may occur in older children and adults include:
The symptoms often develop quickly, over a few hours or so. Symptoms can occur in any order, and not all may occur. Sometimes symptoms develop more slowly, over a few days. The symptoms may suggest a less serious illness at first. For example, fever, headaches, and vomiting are common with many viral illnesses such as flu. Therefore, even if you think it was flu to start with, if symptoms become worse then it may be meningitis or septicaemia.
Urgent treatment is needed with antibiotic injections. These are often given before you are admitted to hospital - for example, your GP may give them to you. Blood tests, and a sample of the fluid that surrounds the spinal cord (a lumbar puncture), may be taken. These tests aim to confirm the diagnosis and to see which bacterium is causing the infection. The antibiotic may be changed depending on the results of the tests.
Intensive care is often needed at first, as the infection often causes shock and problems throughout the body. It is likely that fluids will need to be given directly into the veins (a drip). Oxygen is also often given through a mask on the face.
Steroid injections are also sometimes given. These work by reducing some of the inflammation that occurs with meningitis. Steroid medication has been shown in some studies to reduce the risk of developing hearing problems and other complications.
Antibiotics may be given at first when the cause of the meningitis is not known. The antibiotics are stopped if the cause of the meningitis is found to be viral. Antibiotics don't kill viruses. The body's immune system usually clears most viral infections.
The outlook often depends on how soon antibiotics are given after the illness starts. Most people make a good recovery if treated early enough. Without treatment, most people will die.
A difficulty is that bacterial meningitis and septicaemia can develop quickly and can mimic other illnesses when symptoms first begin. Treatment may be delayed if the cause of early symptoms is not clear at first.
In some cases, a person can be well in the morning, develop flu-like symptoms by the afternoon, and be critically ill or dead by the evening.
There are several complications that may occur after having meningitis. These include:
This can cause an unpleasant illness. However, most affected people make a full recovery. In a small number of cases, some brain injury occurs.
Children are routinely immunised against certain causes of meningitis. These include Haemophilus influenzae type b (Hib), group C meningococcus, pneumococcus and mumps. (See separate leaflet called Childhood Immunisation for more information.)
Other vaccines may be used for travellers going to meningitis-prone countries. Vaccines are not yet available for other causes of meningitis - in particular, Group B meningococcus.
Close contacts of a person with meningococcal infection have an increased risk of developing the illness. However, the risk is still low. Close contacts usually means household members, or intimate kissing contacts within the previous seven days. These people are offered a short course of antibiotics to prevent possible infection.
If group C meningococcus is the cause, then immunisation is also offered to close contacts. Occasionally, an outbreak of two or more cases of meningococcal infection occurs in the same school, college, or similar community. Antibiotics and/or immunisation may then be offered to a wider group of people.
Has some pictures of the rash of meningococcal infection
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