Xenotropic murine leukemia virus-like virus (XMRV) was discovered in 2006 during a search for viral sequences in prostate cancer tissues. The results of a recent study revealed that the virus is present in 23% of prostate cancers from patients in the US. Understanding the role of XMRV in prostate cancers ...

The influenza A (H1N1) 2009 vaccine produced by GlaxoSmithKline has been approved by Canada Health. Here is some information on the vaccine to supplement what I've provided about the US counterparts. The Canadian vaccine, called Arepanrix H1N1, is supplied in two parts. One contains inactivated H1N1 influenza virus, and the ...

The World Health Organization recently convened a meeting of 100 clinicians, scientists, and public health professionals to discuss the clinical features of pandemic influenza. They concluded that the vast majority of infections with the 2009 H1N1 influenza virus were uncomplicated and are followed by full recovery within 7 days. However, ...

There have been many interesting responses to my recent post, "Are you receiving the influenza 2009 H1N1 vaccine?" Some individuals have already been immunized or plan to do so shortly. Others are concerned about the safety and efficacy of the monovalent preparations. As pointed out recently in a Nature editorial, ...

1. Some parasitic wasps lay eggs in caterpillars, where they mature into adult wasps. The wasp eggs contain a virus, encoded in the wasp genome, which prevents the caterpillar from rejecting the eggs. 2. There are a million virus particles per milliliter of seawater €“ for a global total of ...