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Illustration of antigenic shift (influenza) postcard

Qty:
Signature Matte
18 pt thickness / 120 lb weight Soft white, soft eggshell texture
-$0.30

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Size: Standard Postcard

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  • Dimensions: 14.22 cm L x 10.79 cm H; qualified USPS postcard size
  • High quality, full-colour, full-bleed printing on both sides

Paper Type: Signature Matte

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About This Design

Illustration of antigenic shift (influenza) postcard

Illustration of antigenic shift (influenza) postcard

An illustration explaining how antigenic shift can occur in the influenza virus. Antigenic shift occurs when two or more different strains of one or more viruses combine to form a new subtype having a mixture of each original virus's surface antigens. The process may occur in any number of viruses, but influenza is the best-known example. Antigenic shift is a specific case of reassortment or viral shift that confers a phenotypic change, and should not be confused with antigenic drift, which is the natural mutation over time of known viral strains. Image: National Institute of Allergy and Infectious Diseases (public domain)

Customer Reviews

4.9 out of 5 stars rating15.7K Total Reviews
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5 out of 5 stars rating
By Heather D.20 September 2021Verified Purchase
Post Card, Size: Standard Postcard, Paper: Signature Matte, Envelopes: None
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It was exactly like the pic on Zazzle. Size was good to write on the back. Image was great. Lovely colours and clear
5 out of 5 stars rating
By Dash K.23 January 2024Verified Purchase
Post Card, Size: Standard Postcard, Paper: Signature Matte, Envelopes: None
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I was pleased with the excellent quality of the calendar and the high quality of the card stock used. I will definitely order these postcards again. The printing was excellent. I was so pleased!
5 out of 5 stars rating
By Lisa B.26 August 2019Verified Purchase
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Such a huge range of different frogs available, which made my choices very difficult and now the reason I have a whole draw full of cards and postcards! Much better quality than you can buy in the shops and they are exactly on the subject I love and adore too.

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Other Info

Product ID: 239790773136866395
Posted on 19/05/2011, 10:41 AM
Rating: G