Prevention
Is there a plague vaccine? What the science says today
Quick answer
- There is no plague vaccine widely available and recommended for the general public.
- Whole-cell vaccines were used historically and discontinued in several countries; an attenuated vaccine is used in Russia in restricted groups.
- New recombinant vaccines are under research but have not replaced the current strategy.
- The main protection remains avoiding exposure and starting antibiotics early when needed.
Is there a plague vaccine?
Short answer: there is no plague vaccine widely available and recommended for the general population. Restricted-use vaccines and research candidates do exist.
This means that today plague prevention does not rely on mass vaccination — but on exposure measures, vector control and early treatment.
Vaccines used in the past
| Type | Status | Note |
|---|---|---|
| Whole-cell inactivated | Discontinued in several countries | Used historically in risk groups; US production ended in 1999 |
| Live attenuated (EV NIIEG) | Restricted use in Russia | Given to specific groups, such as laboratory professionals |
| Recombinant (e.g. F1-V) | Under research/clinical study | Modern candidates, not yet available to the public |
Why there is no mass vaccination
Plague is rare in most of the world and treatable with antibiotics. Vaccinating entire populations would bring cost and risks without proportional benefit. Efforts therefore focus on very high-risk groups — such as professionals handling the bacterium in laboratories — and on rapid outbreak response.
How to protect yourself without a vaccine
- Avoid contact with rodents, fleas and sick wildlife.
- Do not handle carcasses without proper protection.
- Control fleas on pets and in the environment.
- Use repellent and protective clothing in risk areas.
- Seek care immediately and report exposure if symptoms appear.
Antibiotics can be the 'protection' after exposure
For contacts of pneumonic plague cases, preventive antibiotics for several days reduce the risk of illness. This does not replace a vaccine — it is a post-exposure strategy.
Frequently asked questions
Is there a plague vaccine available to the public?
No. There is no widely available vaccine recommended for the general population. Restricted-use vaccines and research candidates exist.
How can I protect myself if there is no vaccine?
By avoiding exposure to fleas and rodents, controlling vectors in the environment and seeking early care with antibiotic treatment when indicated.
Do travellers to endemic areas need vaccination?
There is no requirement for plague vaccination for travellers, precisely because no vaccine is available to the public. Measures are behavioural and focused on avoiding exposure.
Sources
Medical review
Review by a licensed health professional is being arranged. This educational content is based on reference sources (WHO, CDC and medical literature) and does not replace evaluation, diagnosis or treatment by a health professional.
How this content was produced
- Who
- Produced by the Equipe editorial do Peste.com.br, the editorial team responsible for gathering, verifying and classifying public information about plague (Yersinia pestis).
- How
- Information is compiled from official and scientific sources (WHO, CDC and national health authorities) and from recognised news outlets. Every statement is classified as confirmed, reported or unconfirmed, and each article lists its sources.
- Why
- To offer clear, source-based information in Portuguese about plague and to separate verified fact from rumour. This content is educational and does not replace medical advice.
- Medical review
- Review by a licensed health professional is being arranged; no credential is claimed until a real professional is credited.
- Last review
See our sources and methodology and the editorial team.A revisão por profissional de saúde habilitado está em processo de credenciamento. Assim que concluída, o nome e o registro serão informados nesta página e nos dados estruturados.