Sentence examples for immunity falls from inspiring English sources

So even a small risk is not worth taking, until herd immunity falls so far that the threat of infection (and measles is a disease that can cause serious brain damage) outweighs the risk of vaccine damage.The actual pattern of response, however, does not suggest such a cool and Machiavellian assessment of risk.

To investigate the effect of different levels of infection rate and the duration of immunity on the benefit of avoiding exposure to pathogens, we modified the classical susceptible-infected-recovered (SIR) model to integrate different levels of acquired immunity and the boosting effect of attenuated re-infections when it occurs before the level of immunity falls below the protective threshold.

Because secretory immunity falls rapidly, a high percentage of persons vaccinated years or even decades ago will become transiently infected when exposed to poliovirus and will excrete virus for weeks.

A plan negotiated by neighboring gulf states for Mr. Saleh to step down in exchange for immunity fell through last month when he refused to sign it.

Most of the cases in which this Court has considered questions of immunity fall into this category, 3 as do the three cases other than the present case cited in the Court's per curiam opinion.

Although this analysis is only based on a literature search, it serves to reinforce the idea that several genes affecting HBV vaccine-induced immunity fall into a common pathway.

In Israel, population immunity fell below the threshold and transmission occurred, but this did not lead to cases due to the protection from paralysis provided by high coverage with IPV.

Maxwell said it was important to engage communities, because although incidence of malaria was declining, individual cases tended to be more acute as herd immunity was falling.

But the immunity deal fell apart, so intelligence officials decided to do what spies do best: They offered to buy the data.

Mr. Justice Clark put it quite bluntly: 'the most repulsive speech enjoys immunity provided it falls short of a deliberate or reckless untruth.' 383 U.S., at 63, 86 S.Ct., at 663.

When malnutrition rises, the immunity of children falls, making them more susceptible to diseases such as cholera.