But this microscopic menagerie of organisms has the uncanny ability to rapidly adapt to vastly different environments and evade host immune systems. (genomenewsnetwork.org)
Iwai Y, Ishida M, Tanaka Y, Okazaki T, Honjo T, Minato N. Involvement of PD - L1 on tumor cells in the escape from host immune system and tumor immunotherapy by PD - L1 blockade. (jcancer.org)
These viruses have developed many clever ways to avoid detection by the host immune system — essentially every step in the immune process can be altered or controlled by various genes found in one virus or another. (scientificamerican.com)