Infections that consist of multiple parasite strains or species are common in the wild and are
a major public health concern. Theory suggests that these infections have a key influence on …

Several evolutionary processes influence virulence, the amount of damage a parasite
causes to its host. For example, parasites are favored to exploit their hosts prudently to …

Parasites and infectious diseases are everywhere and represent some of the most potent
forces shaping the natural world. They affect almost every aspect imaginable in the life of …

Many models for the spread of infectious diseases in populations have been analyzed
mathematically and applied to specific diseases. Threshold theorems involving the basic …

At a time of unprecedented expansion in the life sciences, evolution is the one theory that
transcends all of biology. Any observation of a living system must ultimately be interpreted in …

THE POVERTY of sub-Saharan Africa is one of the most obdurate features of the world
economy. Since the industrial revolution, this has been the world's poorest and also its most …

This is a masterly theoretical treatment of one of the central problems in evolutionary
biology, the evolution of social cooperation and conflict. Steven Frank tackles the problem …

Sex is as fascinating to scientists as it is to the rest of us. A vast pool of knowledge, therefore,
has been gleaned from research into the nature of sex, from the contentious problem of why …

With rising antibiotic resistance, there has been increasing interest in treating pathogenic
bacteria with bacteriophages (phage therapy). One limitation of phage therapy is the ease at …

Diseases and pathogens are receiving increasing recognition as sources of mortality in
animal populations. Immune system strength is clearly important in fending off pathogen …