Advances in Virus Research, Volume 103 , the latest in the Advances in Virus Research series, contains new, informative updates on the topic. First published in 1953, this series covers a diverse range of in-depth reviews, providing a valuable overview of the current field of virology. Updates to this release include a Review on phage genes that affect bacterial phenotypes, Phage lysis: new perspectives on the bacterial cell envelope, CRISPRs as the adaptive immune system of archaea and bacteria, CRESS viruses, Tupanviruses, and Giant virus evolution, amongst other topics. Contains contributions from leading authorities in the field of virology Informs and updates on all the latest developments in the field