spacer
  Home | About CDC | Press Room | Funding | A-Z Index | Centers, Institute & Offices | Training & Employment | Contact Us
spacer
spacer CDC Centers for Disease Control and Prevention Home Page spacer
CDC en Español
spacer
Search:  
spacer
Health & Safety TopicsPublications & ProductsData & StatisticsConferences & Events
spacer
spacer
spacer
Public Health Image Library (PHIL)   Photographs, Illustrations, Multimedia Files
spacer
Skip Nav spacer
Back to results

10143

PHIL Image 10143

ID#:10143
Description:Under a plate magnification of 37,800X, this colorized transmission electron micrograph (TEM) depicted the A/New Jersey/76 (Hsw1N1) virus, while in the virus’ first developmental passage through a chicken egg.

What is Swine Influenza?

Swine Influenza (swine flu) is a respiratory disease of pigs caused by type A influenza that regularly cause outbreaks of influenza among pigs. Swine flu viruses cause high levels of illness and low death rates among pigs. Swine influenza viruses may circulate in swine throughout the year, but most outbreaks among swine herds occur during the late fall and winter months similar to humans. The classical swine flu virus (an influenza type A H1N1 virus) was first isolated from a pig in 1930.

Can humans catch swine flu?

Swine flu viruses do not normally infect humans. However, sporadic human infections with swine flu have occurred. In the past several years, on average CDC has received about one influenza virus isolate from a human that tests positive for swine flu each year. Most commonly, these cases occur in persons with direct exposure to pigs (workers in the swine industry, for example). In addition, there have been rare documented cases of one person spreading swine flu to others. For example, an outbreak of apparent swine flu infection in pigs in Wisconsin in 1988 resulted in multiple human infections, and, although no community outbreak resulted, there was antibody evidence of virus transmission from the patient to health care workers who had close contact with the patient.

High Resolution:Right click here and select "Save Target As..." for hi-resolution image (13.82 MB)
Content Providers(s):CDC/ Dr. E. Palmer; R.E. Bates
Creation Date:1976
Photo Credit:
Links:
  • CDC – Key Facts about Swine Influenza (Swine Flu)
    Categories:
    CDC Organization
    tree picture Organization – 2004 – present
    tree picture tree picture Coordinating Center for Infectious Diseases
    tree picturetree picture tree picture National Center for Infectious Diseases
    tree picturetree picturetree picture tree picture Division of Viral and Rickettsial Diseases

    MeSH
    tree picture Analytical, Diagnostic and Therapeutic Techniques and Equipment
    tree picture tree picture Diagnosis
    tree picturetree picture tree picture Diagnostic Techniques and Procedures
    tree picturetree picturetree picture tree picture Diagnostic Imaging
    tree picturetree picturetree picturetree picture tree picture Microscopy, Electron
    tree picture tree picture Investigative Techniques
    tree picturetree picture tree picture Microscopy
    tree picturetree picturetree picture tree picture Microscopy, Electron
    tree picture Organisms
    tree picture tree picture Viruses
    tree picturetree picture tree picture RNA Viruses
    tree picturetree picturetree picture tree picture Orthomyxoviridae
    tree picturetree picturetree picturetree picture tree picture Influenzavirus A
    tree picturetree picturetree picturetree picturetree picture tree picture Influenza A virus
    tree picturetree picture tree picture Vertebrate Viruses
    tree picturetree picturetree picture tree picture RNA Viruses
    tree picturetree picturetree picturetree picture tree picture Orthomyxoviridae
    tree picturetree picturetree picturetree picturetree picture tree picture Influenzavirus A
    tree picturetree picturetree picturetree picturetree picturetree picture tree picture Influenza A virus
    Copyright Restrictions:None - This image is in the public domain and thus free of any copyright restrictions. As a matter of courtesy we request that the content provider be credited and notified in any public or private usage of this image.
     Add to My Pictures

    Back to results


    This page last reviewed: Mar. 18 2005
    spacer
    spacer
    spacer
    spacer
      Home | Policies and Regulations | Disclaimer | e-Government | FOIA | Contact Us
    spacer
    spacer
    spacer Safer, Healthier People
    spacer
    Centers for Disease Control and Prevention, 1600 Clifton Rd, Atlanta, GA 30333, U.S.A
    Tel: (404) 639-3311 / Public Inquiries: (404) 639-3534 / (800) 311-3435
    spacer USA.gov: The U.S. Government's Official Web PortalDHHS Department of Health
    and Human Services