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Early Viral Entry Assays for the Identification and Evaluation of Antiviral Compounds
Published on: October 29, 2015
An overview of viral and viral-like agents in cell culture systems
1International Association of Biological Standardization, P.O.Box 1925, Palm Springs, CA, 92263-1925, U.S.A., jpmdpsca@aol.com.
Abstract:
The first recognition of seriously contaminated biological products occurred almost 100 years ago. More recently, in the second half of this century, the potential for contamination by viral and viral-like agents became obvious when the SV-40 virus was identified as an endogenous agent in the cell cultures used to produce polio vaccines. The history of major contamination incidents is reviewed, and current issues are discussed.
Insights
Biological product contamination, including viral agents like SV-40 in polio vaccines, has been recognized for a century. This review examines historical incidents and discusses current challenges in ensuring product safety.
Area of Science:
- Biotechnology
- Pharmaceutical Science
- Public Health
Background:
- Biological product safety is critical, with contamination posing significant risks.
- Historical incidents highlight the long-standing challenge of ensuring product purity.
- The identification of simian virus 40 (SV-40) in polio vaccines underscored viral contamination risks.
Purpose of the Study:
- To review the history of contamination incidents in biological products.
- To discuss the evolving challenges of viral and viral-like agent contamination.
- To provide context for current issues in biological product safety.
Main Methods:
- Historical literature review of contamination events.
- Analysis of key contamination incidents, including viral agents.
- Discussion of contemporary challenges in contamination control.
Main Results:
- Contamination of biological products has been a recognized issue for nearly 100 years.
- Viral contamination, exemplified by SV-40 in polio vaccines, emerged as a major concern in the latter half of the 20th century.
- Ongoing vigilance and evolving strategies are necessary to address contamination risks.
Conclusions:
- Understanding the history of contamination is crucial for preventing future incidents.
- Continuous improvement in manufacturing and testing is essential for biological product safety.
- Addressing viral and viral-like agent contamination remains a key focus in pharmaceutical development.
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