Sentence examples for more live viruses from inspiring English sources
They harbor more live viruses in their respiratory secretions than adults do and for twice as long.
In the future development of HIV-1 vaccines by rational design, a more effective live virus vector or multiple antigens should be chosen to facilitate the process of neutralizing antibody maturation.
A viral neutralization assay, however, is a functional assay that is technically more difficult to perform and requires live viruses, and therefore may require a biosafety level 3 facility.
Just make sure that the vaccines don't actually contain live viruses, or that can make you more susceptible to the diseases.
Current vaccine options for PEDV include modified live viruses and killed live viruses.
Nasal spray vaccine, known as FluMist, uses a weakened live virus, which gives more protection but carries slightly more risk and so is not recommended for children under 2 or children with asthma or who wheeze.
In limited tests to date, a new vaccine has been effective in preventing infection with live virus, but many more tests are needed, Dr. Grubman said.
Farms using live virus vaccine were more likely to be PRRSV positive compared to non-vaccinated farms.
Since the introduction of highly protective CDV modified live virus (MLV) vaccines more than 60 years ago [ 13], the incidence of CDV infection in completely vaccinated dogs has decreased [ 8].
