Sentence examples for built-up immunity from inspiring English sources

Epidemiologists say the long absence of the disease worsened the outbreak because the population had no built-up immunity.

Or they were infected before they built up immunity -- it takes about two weeks.

While her oldest are adults or teenagers, and have presumably built up immunity to the disease, she worries about her youngest, Anthony, who is 4.

But then it would have been in a Malthusian unstressed state, growing at 3% per year, and people would have built up immunity.

"The reason scientists are concerned is because this is a new strain, and Americans and people around the world have not built up immunity," Mr. Obama said, pointing out that many of those who died from the virus in Mexico were relatively young and healthy.

H1N1 viruses don't tend to be as bad for the elderly those over 65 because those individuals were most likely exposed as children and have built up immunity; for the same reason, those viruses tend to be worse for non-elderly adults.

The vast majority of people have built up immunity, thus it is no longer a pandemic virus and is now considered a seasonal strain.

In those countries, the Aedes aegypti mosquito that primarily transmits the virus is present, and because there haven't been reports of Zika virus in the area in the past, it's unlikely that any local population has built up immunity.

Mukelabai: In typical malaria-endemic areas, adults who suffer from malaria don't die from it because they have built up immunity that protects them.

In typical malaria-endemic areas, adults who suffer from malaria don't die from it because they have built up immunity that protects them.

Unless you've built-up an immunity to the modest amount of caffeine and HFCS like me.