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Veterinary Virus Isolation and Cultivation
BioVenic delivers comprehensive, customized veterinary virus isolation services to help clients tackle core challenges in virological research, drawing on our extensive expertise in animal disease diagnostics. In veterinary medicine, viral infectious diseases continuously threaten animal life and health. Virus isolation and cultivation serve as a fundamental component for studying veterinary viral pathogens and developing corresponding intervention strategies. This work lays an important foundation for creating reliable diagnostic tools, therapeutic regimens, vaccines and disease prevention solutions.
Veterinary Virus Isolation Services
Unlike many bacteria that can grow on artificial culture media, viruses require active host cells for replication. To obtain viruses, we help clients cultivate already infected eukaryotic or prokaryotic host cells and then collect the growth from the culture medium as the source of the virus. We can separate virus particles from the liquid culture medium and host cells through centrifugation or using a filter membrane with a pore size of 10-300 nm.
Fig.1 Schematic diagram of the virus isolation process1,2.
Veterinary Virus Cultivation Services
We provide clients with both in vitro and in vivo virus cultivation services to meet the specific growth requirements of various veterinary viruses.
- In Vivo Cultivation
Embryos or host animals serve as incubators for virus replication. Our in vivo cultivation services include embryo cultivation and host animal cultivation, with a focus on the tissue specificity of veterinary viruses to facilitate the introduction of the client's virus at specific sites.
Embryo Cultivation
In embryo cultivation services, we often provide chicken embryos as incubators for the virus. Chicken embryos are fertilized eggs developed into chicken embryos and are suitable for the isolation and cultivation of viruses such as avian influenza virus, poxvirus, and mumps virus. We inoculate the virus at specific locations within the chicken embryo, such as the amniotic cavity, chorionic membrane, or yolk sac, based on client requirements.
Host Animal Cultivation
We select common host animals such as model animals, dogs, bovines, pigs, etc., based on client requirements. The inoculation routes include intranasal, subcutaneous, intradermal, intracranial, intraperitoneal, and intravenous, among others. Our host animal cultivation services aim to assist clients in researching virus pathogenicity, identifying pathogens, and evaluating vaccines and new drugs.
- In Vitro Cultivation
In vitro cultivation of veterinary viruses requires tissue culture cells derived from animals. BioVenic utilizes both primary cells and continuous cell lines to assist clients in the in vitro cultivation of viruses.
Primary Cell Culture
Primary cell culture involves using cells freshly prepared from animal organs or tissues for the cultivation of viruses. In this process, cell density is controlled through contact inhibition, allowing cells to adhere to the surface of the culture vessel. Through primary cell culture, we can provide virus cultivation services that adhere to high-quality standards.
Secondary Cell Culture
Secondary cell culture refers to the continuous passage of cells in vitro, mostly derived from tumor tissues or diploid cells, allowing the virus to undergo multiple passages or unlimited growth. This service aids clients in cultivating suspension-grown cells, enabling cells to sustain continuous growth like small tumors. This provides flexibility and sustainability for the in vitro cultivation of viruses.
Applications
Why Choose Us?
- Our services are dedicated to a variety of veterinary viruses, including emerging, re-emerging, and novel viral pathogens.
- We can achieve virus isolation and cultivation across various animal species, encompassing companion animals, farmed animals, livestock, poultry, and aquatic species.
- Our services are designed to meet a wide range of sample requirements from our clients. This includes, but is not limited to, obtaining blood, tissues, and respiratory samples from animals, as well as water and soil samples from the environment. We are also adept at handling animal products and by-products such as milk and meat.
Frequently Asked Questions
What core technical methods do you use to separate intact virus particles from host cell mixtures during isolation?
We adopt two mainstream separation approaches: differential gradient centrifugation to precipitate virus pellets, and size-selective membrane filtration (10–300 nm pore size) to intercept virus particles while removing cell debris and large impurity components from culture supernatants.
What two major cultivation systems are available for veterinary viruses, and what sub-techniques are included in each?
We provide in vivo and in vitro dual cultivation systems. In vivo covers chicken embryo inoculation (amniotic cavity, allantoic cavity, yolk sac routes) and laboratory host animal inoculation via multi-administration paths. In vitro includes primary fresh tissue cell culture and immortalized continuous cell line subculture for long-term virus passaging.
What types of sample materials can be delivered for veterinary virus separation and culture projects?
We support diverse sample sources: animal clinical specimens such as blood, lesion tissue and respiratory secretions. Environmental samples including breeding water and soil. Animal by-products like milk and meat, suitable for isolating novel or endemic animal viral pathogens.
What research scenarios rely on finished isolated and cultured veterinary virus strains?
Purified live virus preparations support four core research directions: viral pathogen identification & molecular diagnostic kit development, veterinary viral vaccine strain construction, antiviral biological drug screening, and fundamental virology mechanism research on virus pathogenicity.
What advantages does chicken embryo in vivo culture have for avian viral strains compared to cell culture?
Chicken embryos possess complete embryonic tissue microenvironments matching avian virus tissue tropism, and support high virus amplification titers for avian influenza, poxvirus and similar pathogens. Multiple targeted embryo inoculation positions can be selected according to virus tissue preference to improve replication efficiency.
Partner with BioVenic
Virus isolation and culture are cornerstones in veterinary virus research. BioVenic understands its critical role and is committed to providing tailor-made veterinary virus isolation and culture services based on clients' specific research goals and considerations. If you are interested in this service of ours or have any questions, please feel free to contact us.
References
- Buchholz, Holger H., et al. "Efficient dilution-to-extinction isolation of novel virus–host model systems for fastidious heterotrophic bacteria." The ISME Journal 15.6 (2021): 1585-1598.
- Image retrieved from Figure 1 "Schematic of the isolation workflow", Buchholz, Holger H., 2019, used under CC BY 4.0. The original image was modified by using only part A and changing title to "Schematic diagram of the virus isolation process".