Hamster Serum (Normal Hamster Serum, NHS) — BHK-21 Cell Culture & Vaccine Production | EU Origin | SeamlessBio
EU Stock0.2 µm sterile filteredNo MOQCoA included
Normal Hamster Serum (NHS) is essential for a specific and high-value application: as a culture medium supplement for Baby Hamster Kidney cells (BHK-21), the world's leading cell line for production of rabies vaccines, foot-and-mouth disease (FMD) vaccines, and other veterinary and human virus vaccines.
Species-specific hamster serum improves BHK-21 proliferation, viability, and virus susceptibility compared to FBS — particularly relevant for GMP-adjacent vaccine production processes where virus yield and batch consistency are critical.
Applications of Normal Hamster Serum (NHS)
| Application | Protocol | Why NHS? |
|---|---|---|
| BHK-21 Cell Culture | 5–10% NHS in DMEM/GMEM as medium supplement | Species-specific growth factors improve BHK-21 proliferation and viability vs FBS |
| Rabies Vaccine Production | NHS as serum component in BHK-21-based virus production medium | BHK-21 is the WHO-recommended cell line for rabies vaccine — NHS optimises cell substrate and virus yield |
| FMD (Foot-and-Mouth Disease) Vaccine | NHS in BHK-21 monolayer culture for FMD virus propagation | BHK-21-based FMD vaccine production — species-specific serum improves cell monolayer quality |
| Hamster ELISA Negative Controls | NHS as negative matrix control in anti-hamster antibody ELISA | Validates assay specificity in hamster model studies |
| IHC Blocking | 5% NHS before anti-hamster secondary antibodies | Species-matched blocking for IHC panels using hamster primary antibodies |
| Hamster Primary Cell Culture | Supplement for primary hamster cells (kidney, lung, ovary) | Species-specific factors for primary hamster cell cultures in infectious disease research |
BHK-21 and Hamster Serum — the scientific background
| Parameter | Details |
|---|---|
| BHK-21 origin | Baby Hamster Kidney cells — Syrian hamster kidney cells, established 1963 |
| Primary applications | Rabies, FMD, alphavirus, bunyavirus, flavivirus vaccine production |
| Why species-specific serum? | BHK-21 is a hamster cell line — species-matched serum proteins support species-specific cell physiology, especially adhesion factors and compatible growth hormones |
| Advantage vs FBS | Better BHK-21 monolayer formation, reduced xenoprotein contamination risk, improved virus susceptibility in some protocols |
Technical Specifications
| Parameter | Specification |
|---|---|
| Species | Syrian hamster (Mesocricetus auratus) |
| Abbreviation | NHS — Normal Hamster Serum |
| Collection | Pooled healthy donors, sterile bleed |
| Filtration | 0.2 µm sterile filtered |
| Origin | EU |
| Storage | −20 °C; aliquoting recommended |
| Volumes | 10 mL, 100 mL, 500 mL | Bulk on request |
| Documentation | CoA, CoO on request |
| Options | Heat inactivated (56 °C, 30 min) on request |
Frequently Asked Questions
Why is BHK-21 preferred for vaccine production?
BHK-21 is one of the most robust cell lines for virus production: high growth rate, broad virus susceptibility for RNA and DNA viruses, scalable for bioreactor production. WHO recommends BHK-21 as substrate for human rabies vaccines. Species-specific hamster serum improves cell substrate quality and batch consistency.
Can FBS be used for BHK-21 cultures?
FBS is widely used for BHK-21 and works for research applications. For vaccine production and GMP-adjacent processes, species-specific NHS is preferred — lower xenoprotein risk, better cell monolayer consistency, and simpler regulatory justification for elimination of bovine adventitious agents.
Is hamster serum suitable for CHO cell culture?
Yes — NHS is also relevant as supplement for CHO cells (Chinese Hamster Ovary) in early cultivation phases, and for other hamster-based cell lines such as Cricetulus migratorius (CMT) and primary hamster cells from various tissues.
Complete Animal Serum Portfolio at SeamlessBio
All animal sera from one EU source — consistent documentation, no minimum order.
| Species | Abbr. | Primary Application |
|---|---|---|
| Rabbit | NRS | IHC/WB/ELISA blocking — anti-rabbit secondary antibodies |
| Goat | NGS | IHC/IF blocking — most common secondary antibody host |
| Sheep | NSS | Blocking, complement CFT, vaccine & vet diagnostics |
| Mouse | NMS | ELISA controls, anti-mouse IHC, primary cell culture |
| Rat | — | Anti-rat IHC blocking, rat primary cell culture |
| Horse | DHS | PC12 differentiation, hybridoma, muscle differentiation |
| Chicken | NCS | CEF cell culture, poultry ELISA controls |
| Pig | NPS | Swine vaccine development, porcine vet diagnostics |
| Guinea Pig | NGPS | CFT complement source — unique diagnostic niche |
Order Information
| Parameter | Details |
|---|---|
| Shop URL | shop.seamlessbio.de/en/products/hamster-serum |
| Volumes | 100 mL, 500 mL | Bulk on request |
| Documentation | CoA, CoO on request — free with every order |
| Free test volume | Available before purchase — contact us |
| Batch reservation | Yes — reserve one lot for your entire project |
| info@seamlessbio.de | |
| Phone | +49 851 37932226 |