In a population, increasing exposure levels will result in simultaneously increasing both incidence and severity: more and more individuals will suffer from more and more severe effects.
But elevated stress hormones can cause reproductive and other problems, the researchers say, so measuring hormones could provide warning of more severe effects to come.
Most patients suffer fever and headache but more severe effects such as intestinal bleeding and pneumonia are possible and it can be fatal if not treated with antibiotics.
Boys were more likely to be the harassers, according to the study, and children from lower-income families reported more severe effects.
Probably most common are the more severe effects of long-term thiamin deficiency degeneration of the peripheral nerves (with permanent damage in extreme cases) and beriberi heart disease.
This is of specific concern because MP infiltrating tissues might induce more severe effects.
Defects have more severe effects on critical strain than critical force of nanotubes.
In a full lifespan test, CuO NP caused more severe effects compared to a standard test duration [175].
Our data suggest that habitat destruction and fragmentation has more severe effects on jaguars than on pumas.
Similarly, Collembola (F. candida) showed more severe effects in their reproductive output with increasing ageing duration of Ag NP in spiked sewage sludge [193].
Hypoxia induced more severe effects in the gill structures than the harmful alga, whereas the digestive gland was more affected by exposure to M. aeruginosa.
