
Vacunación privada contra MenB: quién podría considerarla y cómo funciona
Revisado por pares por Dr Colin Tidy, MRCGPEscrito por Thomas Andrew Porteus, MBCSPublicado originalmente 17 Mar 2026
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Vaccination has transformed the prevention of meningitis in the UK. However, not all forms of meningococcal disease are covered by routine vaccination programmes for every age group.
One of the most important strains still seen in the UK is meningococcal group B (MenB). While babies are routinely vaccinated against MenB, many teenagers and adults are not. As a result, some people choose to access the MenB vaccine privately, particularly if they feel they may be at increased risk.
Understanding what MenB is, who may benefit from vaccination, and how private vaccination works can help you decide whether it is right for you.
What is MenB and why is it important?
MenB refers to a specific strain of Neisseria meningitidis - the bacteria that can cause meningitis and septicaemia.
In most people, these bacteria live harmlessly in the nose and throat without causing illness. However, in rare cases they can enter the bloodstream and lead to serious infection.
When this happens, the disease can develop rapidly and may become life-threatening within hours.
It can cause:
Meningitis - an infection of the lining of the brain and spinal cord.
Septicemia - a bloodstream infection that can lead to sepsis.
Although meningococcal disease is uncommon, MenB has historically been one of the most common causes of bacterial meningitis in the UK.
How common is MenB in the UK?
The overall number of meningococcal cases in the UK is low compared with many other infectious diseases.
However, MenB continues to account for a significant proportion of cases, particularly among infants, teenagers and young adults.
Rates vary from year to year, and clusters can occasionally occur in settings such as universities, where close contact and shared living spaces can increase transmission.
While the risk to most people remains small, the potential severity of the illness is why vaccination is often considered.
MenB vaccination in the UK
The MenB vaccine (Bexsero) was introduced into the UK childhood immunisation programme in 2015.
Babies are offered the vaccine at 8 weeks, 16 weeks, and again at 12 months. This programme has led to a substantial reduction in MenB cases among young children.
However, MenB vaccination is not routinely offered on the NHS to teenagers or adults, unless they are in specific high-risk groups.
This means that many young adults, particularly those born before 2015, may not have received MenB vaccination.
Who might consider private MenB vaccination?
For most people, the risk of meningococcal disease is low. However, some people choose to consider private vaccination for additional reassurance.
This is often discussed in the context of students starting university, young adults who did not receive childhood vaccination, and those concerned about local cases or outbreaks.
Where to get the private MenB vaccination
The MenB vaccine is available privately through private GP clinics, some pharmacies, and travel vaccination clinics.
Before vaccination, a healthcare professional will usually review your medical history and explain the benefits and potential side effects.
For teenagers and adults, the vaccine is usually given as two injections, spaced at least one month apart.
How much does private MenB vaccination cost?
The cost typically ranges from £80 to £150 per dose. As two doses are usually required, the total cost may be between £160 and £300.
Side effects and safety
The MenB vaccine is considered safe. Common side effects include:
Dolor en el lugar de la inyección.
Mild fever.
Dolor de cabeza.
Cansancio.
These usually resolve within a few days. Serious allergic reactions are extremely rare.
How effective is the MenB vaccine?
The vaccine provides protection against many strains of meningococcal group B bacteria, although it does not cover every variant.
It has been shown to significantly reduce the risk of invasive MenB disease.
MenB vaccination and other meningitis vaccines
The MenACWY vaccine protects against strains A, C, W and Y, but not MenB. The MenB vaccine specifically targets group B bacteria.
Some people consider having both vaccines to broaden protection.
Vaccination is only part of protection
Vaccination reduces risk but does not eliminate it entirely. Recognising symptoms such as fever, severe headache, neck stiffness, confusion, and a non-fading rash remains essential.
Anyone with symptoms suggestive of meningitis should seek urgent medical help.
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Preguntas frecuentes
Does the MenB vaccine protect against all types of meningitis?
No, the MenB vaccine specifically targets meningococcal group B bacteria, which is a common cause of bacterial meningitis. Other vaccines, like the MenACWY vaccine, protect against different strains (A, C, W, and Y), but not MenB. To broaden protection, some people choose to have both vaccines.
What is the typical dosage schedule for the private MenB vaccination for teenagers and adults?
For teenagers and adults, the MenB vaccine is usually administered as two separate injections. These injections need to be spaced at least one month apart to be effective.
If I had the Men ACWY vaccine, do I still need the MenB vaccine?
Yes, if you've had the MenACWY vaccine, it protects against meningococcal strains A, C, W, and Y. However, it does not protect against strain B. The MenB vaccine specifically targets group B bacteria. Some individuals consider having both vaccines to get protection against a wider range of meningococcal strains.
Are there any serious side effects from the MenB vaccine?
The MenB vaccine is considered safe, and common side effects are usually mild and temporary, such as pain at the injection site, mild fever, headache, and tiredness. These typically go away within a few days. Serious allergic reactions to the vaccine are extremely rare events.
Why would someone born before 2015 consider getting a private MenB vaccination?
The MenB vaccine was introduced into the UK childhood immunisation programme in 2015. This means that many young adults born before this year would not have received the MenB vaccination as part of their routine NHS immunisations. They might consider private vaccination for additional reassurance, especially if they are students starting university, or are concerned about local cases or outbreaks.
Sobre el autorVer biografía completa

Thomas Andrew Porteus, MBCS
HealthTech
MBCS
Thomas escribe para informar, inspirar y equipar a líderes de práctica y profesionales de la salud que navegan por el cambio, basándose en dos décadas de trabajo práctico en el sistema de salud del Reino Unido.
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Dr Colin Tidy, MRCGP
Médico General, Autor Médico
MBBS, MRCGP, MRCP (Paediatrics), DCH
El Dr. Colin Tidy es un médico del NHS, con sede en Oxfordshire.
Historial del artículo
La información en esta página es revisada por pares por clínicos calificados.
Artículo también disponible en Inglés, Alemán, Español, Francés, Italiano, Portugués, Hindi, Hebreo, Árabe, y Sueco.
Next review due: 17 Mar 2029
17 Mar 2026 | Publicado originalmente
Escrito por:
Thomas Andrew Porteus, MBCSRevisado por pares por
Dr Colin Tidy, MRCGP

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