A medical professional leads a volunteer to receive an experimental flu shot at the University of Maryland in Baltimore
A medical professional leads a volunteer to receive an experimental vaccine designed to prevent him from contracting the H1N1 swine flu virus, during early trials of the drug at the University of Maryland in Baltimore, August 10, 2009. The University of Maryland's School of Medicine is one of the eight university medical centres and clinics trialling the experimental vaccine, expected to become more widely available later in the year, designed to protect against the H1N1 influenza virus. REUTERS/Jason Reed (UNITED STATES HEALTH)
May not credit Reuters for commercial, political, or advertising usage.
Content available for editorial use, pre-approval required for all other uses.
Content may not be substantially altered without pre-approval from provider.
Not available for distribution, sale, or license by Corbis' international representatives.
Reuters content is available for licensing to and for use by third parties in the United States, United Kingdom, Canada, Germany, and Belgium only.
Uncompressed file sizes and pixel dimensions are approximate. Grayscale images are 1/3 the file size of RGB files. Files downloaded directly from the website are compressed JPEG format. You may request a TIFF file, if available, or a larger interpolated size for your output needs. Please contact Customer Service for associated production fees.