So, there are viruses which infect only humans (smallpox), some which infect humans and one or two additional kinds of animals (influenza), some which infect only a particular kind of plant (tobacco mosaic virus), and some which infect only a particular species of bacteria (lambda bacteriophage which infects E. coli ).
(lambda bacteriophage; infects; E. coli) (viruses; infect; only humans) (some; infect; humans) (some; infect; only a particular kind of plant) (some; infect; only a particular species of bacteria)
lambda bacteriophage viruses some some some
infects infect infect infect infect
E. coli
only humans
humans
only a particular kind of plant
only a particular species of bacteria