8 Out of 10 Cats show has to be edited to fit in its 26-minute slot. From series 9 there is a longer version of the show called "8 Out of 10 Cats Uncut", broadcast a few days later. These rounds only featured in series 1 and the "Big Brother" special shows: Since 2012, crossover episodes between "8 Out of 10 Cats" and "Countdown" have aired. The show follows the format of "Countdown", but is hosted by Jimmy Carr, with permanent contestants Sean Lock and Jon Richardson, as well as two other guest contestants. On 4 January 2013, a special episode of "Deal or No
Avian influenza in cats relationship with the amount of T cells present and the amount of infected cells. Another study to test whether the ALVAC recombinant canarypox virus could prime the immune system in cats was performed. This vaccine has the same hemagglutinin as the H5N1 virus, and therefore worked on preventing death from two different strains of the virus, HPAIV A/Vietnam/1194/2004 and HPAIV A/Indonesia/05/2005. However, some of the cats that were vaccinated did exhibit hyperthermia and weight loss, and all of the cats did have some disease change (assuming lesions) in their lungs. All of the cats, except one, still excreted the virus