MenB Vaccine: Protecting Against Meningitis and Gonorrhea

What Is the MenB Vaccine?

The MenB vaccine, also known as the meningococcal group B vaccine, protects against Neisseria meningitidis serogroup B – a leading cause of bacterial meningitis and sepsis. This potentially life-threatening infection can progress rapidly and leave survivors with serious complications such as brain damage, hearing loss, or limb amputation.

Originally developed to fight meningococcal disease, the MenB vaccine also provides moderate cross-protection against gonorrhea, an increasingly antibiotic-resistant sexually transmitted infection.

Diseases Prevented by the MenB Vaccine

1. Meningitis and Sepsis

The primary role of the MenB vaccine is to prevent invasive meningococcal disease, which can cause brain and blood infections. In countries like the UK, MenB vaccination has dramatically reduced meningitis B cases among children.

2. Gonorrhea

Emerging research shows MenB vaccines may reduce gonorrhea risk by 30–40%. Though not a replacement for condoms or STD testing, this added benefit makes MenB especially valuable in high-risk populations.

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MenB Vaccine for Gonorrhea Prevention

Gonorrhea affects over 80 million people globally each year. A growing body of studies shows that individuals vaccinated with MenB are less likely to contract gonorrhea. A 2024 meta-analysis reported that:

• Dose 1: Day of first appointment, ~26% protection
• Dose 2: At least 1 month after the first dose to improve protection to ~40%
• Protection may last up to 3 years, though may wane afterward
  

(Some adults at higher risk may be advised to get a 3rd dose, depending on the doctor’s recommendation.)

While not a gonorrhea-specific vaccine, MenB's cross-protection is a game changer, especially as gonorrhea strains become resistant to antibiotics. Protection against gonorrhoea may wane over time, so regular sexual health screening is still important.

MenB Vaccine and Gonorrhea: Emerging Evidence

Gonorrhea is a prevalent STD – there are an estimated 82 million gonorrhea cases worldwide each year – and it’s becoming increasingly difficult to treat due to rising antibiotic resistance. Alarmingly, strains of gonorrhea resistant to virtually all antibiotics have already been reported, prompting urgent calls for a vaccine. While no vaccine specifically for gonorrhea exists yet, scientists have discovered that those who received the MenB vaccine tend to get gonorrhea less often than those who didn’t. In other words, the MenB meningitis shot also offers a moderate level of protection against gonorrhea infection.

Managing Fever After MenB Vaccination with Paracetamol

Fever is common in infants after MenB vaccination, especially when given with other routine shots. UK health authorities recommend using infant paracetamol to prevent and reduce fever:

• Dose 1: 2.5 ml (60 mg) within 1 hour of vaccination
• Dose 2 & 3: Every 4–6 hours after

This significantly lowers the risk of high fever and makes the experience more comfortable for both baby and parent. Paracetamol does not affect the vaccine’s efficacy.

Getting the MenB Vaccine in Thailand

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Protection against Gonorrhea

The MenB vaccine not only defends against deadly meningococcal disease but also offers additional protection against gonorrhea. With rising concerns over antibiotic resistance, this cross-protection is an unexpected public health win.

Whether you're a parent, traveler, or adult seeking preventive care, the MenB vaccine is a smart and effective health investment. In Thailand, it’s easy to access through private providers—just be sure to complete the full dose schedule and consult your doctor.

Chat with Our doctors on MenB vaccine for Gonorrhea Now,
Book Your Appointment Today!

Contact us at info.bkk@pulse-clinic.com or chat on your preferred platform:

 +66 65 237 1936    @PULSEClinic   PulseClinic