Last reviewed: July 15, 2026. This article is for general information and does not replace advice from a licensed clinician.
Editorial review and sources
Editorial review: osvilt.com Editorial Team
Last reviewed: July 15, 2026
This medical article is based on current public medical sources and follows the osvilt.com Medical Review Policy. It is for general information only and does not replace professional care; see our Medical Disclaimer.
Sovigripp is an inactivated influenza vaccine used in Russia. Influenza vaccine composition changes by season, so old strain lists should not be treated as current advice. The package, official register and clinician guidance for the exact season matter.
Short answer: Before Sovigripp or any flu shot, check the current season, age indication, allergy history, acute illness, pregnancy status and whether the vaccine composition follows current public health recommendations for that season.
What changed in this update
The article was updated to avoid stale strain lists. It now explains that flu vaccine composition changes annually and that users should rely on current-season official labeling and public health recommendations.
What to verify
| Question | Why it matters | Where to check |
|---|---|---|
| Which season is the vaccine for? | Influenza strains are updated regularly. | Package label, official register, clinic documentation. |
| Is it age-appropriate? | Age indications and dose volumes vary by vaccine. | Product instruction and clinician. |
| Any contraindications? | Severe allergy to a vaccine component or previous serious reaction may matter. | Doctor/nurse before vaccination. |
| Are you acutely ill? | Vaccination may be postponed with moderate/severe acute illness or fever. | Vaccination site screening. |
Current composition context
For the 2026-2027 northern hemisphere season, WHO recommends trivalent influenza vaccines. Egg-based vaccine recommendations include A/Missouri/11/2025 (H1N1)pdm09-like, A/Darwin/1454/2025 (H3N2)-like and B/Tokyo/EIS13-175/2025 (B/Victoria lineage)-like viruses. Local licensed products should be checked against their own current-season documents.
What the flu shot can and cannot do
Influenza vaccination is designed to reduce the risk of flu and especially severe outcomes, but protection is not immediate and is not 100%. It does not treat an active flu infection and does not protect against every respiratory virus.
When to get medical care
Ask a clinician before vaccination if you had a severe allergic reaction to a previous flu vaccine, have a history of Guillain-Barre syndrome, are acutely ill with fever, are immunocompromised, pregnant, or vaccinating a young child. Seek urgent care after vaccination for breathing trouble, facial/throat swelling, fainting that does not quickly resolve, or widespread hives.
FAQ
Is last year’s Sovigripp composition still current?
Do not assume that. Flu vaccine strain composition is updated by season, so check the package and official current-season documents.
Can a flu vaccine cause flu?
Inactivated flu vaccines do not contain live influenza virus capable of causing flu infection.
When is flu vaccination usually done?
Timing depends on local flu season and public health guidance; many programs vaccinate before seasonal spread begins.
B virus in an amount of 11 mcg This composition helps to protect the child from the most dangerous subtypes and strains that most often cause severe consequences: “swine” flu and “Hong Kong”.