Blood donor serosurveillance in eight of Brazil’s most populous cities reveals extensive variation of SARS-CoV-2 attack rate across cities, age, and sex groups in December 2020 and increased intrinsic severity of the Gamma variant of concern.

An ento-epidemiological model reveals that what made the Zika virus a public health problem in Feira de Santana, Brazil, was a surprisingly high attack rate coupled with a low risk of Microcephaly per challenged pregnancy.

Humans intranasally administered the neuropeptide oxytocin waste less and earn more spoils during intergroup conflict because oxytocin enables group members to better coordinate strategic attacking of out-groups.

In primary schools, where vaccination coverage can be low, a repetitive testing strategy reduces SARS-CoV-2 infections while keeping classes and schools open, as such limiting infection transmissions and absenteeism.

Model-inference reconstructed SARS-CoV-2 transmission dynamics in South Africa during March 2020 to February 2022, and quantified the immune erosion potential and transmissibility of three major variants (Beta, Delta, and Omicron), highlighting their common characteristics and the need for more proactive preparedness.

Natural transmission experiments should be prioritised over risky and expensive field trials, in order to establish the impact of cattle vaccination on the transmission of bovine Tuberculosis.

Influenza transmission among ferrets correlates strongly with transmission among humans, so the ferret model for influenza transmission is a valid tool for pandemic potential in humans.

Deleterious mutations slow down flu's antigenic evolution, make it more punctuated in nature, and reduce the virus's genetic diversity.

The mathematical model incorporating new parameters explains multimodal distributions in escape direction (i.e., multiple preferred escape trajectories), which are previously observed in various animal taxa.

The competing mortality risk from cancer itself overshadows any increase in COVID-19 mortality risk due to cancer.