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Antigenic shift

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Original - Antigenic shift is the process by which a virus can spread from one animal to another. This illustration shows how a virus can become a pandemic strain. This can occur in three ways: through direct transfer from an animal, through an intermediary animal host, or through an animal host in which genetic mixing occurs.
Edit 1 – converted to PNG by Fvasconcellos (talk · contribs)
Reason
Significantly contributes to understanding of the concept of Antigenic shift by illustrating clearly and attractively. The shifts are understandable at thumbnail, and the text provides context for the processes at larger sizes. Also very timely, would be nice to have featured media on this high visibility subject.
Articles this image appears in
Antigenic shift, Influenza A virus subtype H1N1
Creator
National Institute of Allergy and Infectious Diseases (NIAID)
Comment. I did think about the JPG/SVG issue, but it's not something I can fix today, and I thought that timeliness was more important (and still featurable as JPG). If anyone wants to have a go at replacing it I'd be thankful. Mostlyharmless (talk) 02:43, 28 April 2009 (UTC)[reply]
  • Conditionnal Oppose. I'm not an expert on influenza, but from what i read in Antigenic shift, the diagram doesn't seem right. The article seems to indicate that the shift is specifically what happens in step A3. On the other hand the diagram seems to say "they are three types of shift : A, B and C". The diagrams doesn't show antigenic shift, it shows ways to pass influenza from a bird host to a human host, one of which involves antigenic shift. Ignore this vote if I'm wrong. Ksempac (talk) 08:19, 28 April 2009 (UTC)[reply]
    • The article is poorly written and under referenced at this stage imo. However there is specific discussion further down regarding pigs (A-1/A-2). A-4 seems to be covered too. Noodle snacks (talk) 11:10, 28 April 2009 (UTC)[reply]
      • I'm not sure I understood what you said, but what i mean is A1 to A4 is obviously transmission through antigenic shift (which happens in step A3). However, as I understand it, B and C are direct transmission without modification of the virus, therefore without shift. Yet the top text on this image states that a jump from one specie to another is an "antigenic shift". Ksempac (talk) 11:40, 28 April 2009 (UTC)[reply]
        • Oh I see, I'd trust an external source to validate the other two methods, not the WP article. I would have thought that the author of that image was pretty reliable. Noodle snacks (talk) 12:33, 28 April 2009 (UTC)[reply]
          • It seems i was wrong : " Antigenic shift refers to an abrupt, major change to produce a novel influenza A virus subtype in humans that was not currently circulating among people (see more information below under Influenza Type A and Its Subtypes). Antigenic shift can occur either through direct animal (poultry)-to-human transmission or through mixing of human influenza A and animal influenza A virus genes to create a new human influenza A subtype virus through a process called genetic reassortment. Antigenic shift results in a new human influenza A subtype. A global influenza pandemic (worldwide spread) may occur if three conditions are met: 1 A new subtype of influenza A virus is introduced into the human population. 2 The virus causes serious illness in humans. 3 The virus can spread easily from person to person in a sustained manner." http://www.cdc.gov/flu/avian/gen-info/flu-viruses.htm We really need some good input on this oneKsempac (talk) 13:12, 28 April 2009 (UTC)[reply]
  • Conditional Support - as the others have said, this really should be SVG. Usually diagrams here that should be SVG are PNG instead, but JPG is even worse. However, thankfully this has been saved using low JPG compression (high quality setting), and is both high resolution and very encyclopaedic. Therefore, pending confirmation of the accuracy (as raised by Ksempac), I will support this version only if it is made a high priority candidate for redrawing as SVG, and as soon as a suitable SVG is made it is nominated for delisting and replacement with the SVG as the featured image. Phew, long sentence. —Vanderdecken∴ ∫ξφ 10:48, 28 April 2009 (UTC)[reply]
  • Oppose, doesn't have to be SVG but should be PNG. The image itself is fine... but when we have MediaWiki auto scale it it gets artifacts and looks a lot worse and rarely will we be viewing it at native resolution. gren グレン 14:53, 28 April 2009 (UTC)[reply]
Comment. Should I withdraw this then until someone can turn this into a PNG or SVG? Mostlyharmless (talk) 00:48, 29 April 2009 (UTC)[reply]
Not sure, I'd just let it run its course because I'm not sure if others will agree with me. As far as JPGs go it is very good quality and my main worry is about resizing problems not about native resolution. gren グレン 17:00, 30 April 2009 (UTC)[reply]
I've converted to PNG here (no idea this was at FPC, though). Please don't support the JPG version—those artifacts are nasty. Fvasconcellos (t·c) 21:30, 30 April 2009 (UTC)[reply]

Waiting to hear if Ksempac still opposes. Please do not close until user comments. Other !votes are still welcome until that point in time (only fair). ~ ωαdεstεr16«talkstalk» 05:49, 6 May 2009 (UTC)[reply]

  • I believe the condition is met. "Ignore this vote if I'm wrong" and he later said "It seems i was wrong". Noodle snacks (talk) 05:57, 6 May 2009 (UTC)[reply]
    • Yup, even though I would have liked some expert's advice on this one, you can go on. If i find some time for that (unlikely but still...), i will try to research this and complete the article since both NIAID and CDC websites agree on this matter Ksempac (talk) 08:34, 6 May 2009 (UTC)[reply]

Not promoted ~ ωαdεstεr16«talkstalk» 14:59, 6 May 2009 (UTC)[reply]

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