| Of five unvaccinated dogs, all succumbed to inoculation, by trepanning, of the brain. |
| The mice that received either version of the modified DNA vaccine had one million times fewer virus particles than the unvaccinated mice. |
| Because of the herd immunity that exists because of mass vaccination, the unvaccinated are also protected. |
| By comparison, six out of seven unvaccinated animals had to be treated for virulent malaria. |
| All previously unvaccinated household and sexual contacts of persons with serologically confirmed hepatitis A should receive immune globulin. |
| Farmers have been warned about the risk of picking up the infectious disease, leptospirosis, from unvaccinated cattle. |
