How to detect a moving target: infectious influenza virus in clinical specimens

viroclinicsMay 16th 2014, ROTTERDAM, THE NETHERLANDS – Since their introduction in the human population in 1968, influenza A viruses of the H3 subtype have evolved continuously to escape recognition and neutralization by antibodies, a component of our immune system. These changes have also reduced the ability of viruses to bind red blood cells, termed hemagglutination, a trait that is widely utilized in laboratories to measure levels of infectious influenza virus in clinical specimens.
Viroclinics Biosciences found a way to detect such virus variants by targeting a more conserved part of the virus that is present in all influenza A virus strains tested since 1934 to date. The rise of virus variants missed by hemagglutination-based techniques was documented for the period between 1999 and 2012, in close collaboration with Erasmus MC Viroscience department scientists. These results and the validity of the new method for quantitating infectious virus in clinical specimens is now reported in the May 2014 issue of the Journal of Clinical Microbiology.

The new method requires no additional patient material and forms a prime asset for studies on the effectiveness of novel antiviral treatments against moving targets such as influenza A viruses.

Link to the publication in Journal of Clinical Microbiology

W:  www.viroclinics.com

Background information Viroclinics

Viroclinics Biosciences BV (Viroclinics) is a virology contract research organization, serving the biopharmaceutical community as a pre-clinical and clinical reference laboratory for supporting the development of new chemical entities, vaccines and antiviral compounds targeting viral infectious diseases.

Viroclinics was founded in 2001 as a spin-off from the Erasmus Medical Center, Department of Viroscience in Rotterdam, the Netherlands. It has since grown into a company exceeding 60 FTE of dedicated scientists and technical experts, and operates within a network of key opinion leaders as consultants. As of September 2012 the company migrated to a location with 3000 m2 office space and new laboratory facilities, including  BSL-2 and BSL-3 laboratories. Additionally, a samples processing facility has been opened in Boston USA, at the start of 2013. The ongoing, intimate interaction between scientists at the Erasmus MC and company staff yields a strong, flourishing platform to act and implement assays at the forefront of Viroscience.

Viroclinics operates at a global level, being the preferred virology testing laboratory for several of the top-10 Biopharmaceutical companies. Organizationally the company has matured to a stage that a QA department, a clinical service department, a pre-clinical service department, an assay development department and a clinical trial operation department all work in an ISO 15189 accredited quality management system, expanded with elements of GLP and GCP.