Exact(9)
25 For example, the expected relative final size of an epidemic with an R0 of 2.7 is 25% larger in the absence of intervention than an epidemic with an R0 of 1.8; and to attain an immune herd (ie, critical vaccination level: 1 1/R0), the absolute fraction of the population vaccinated must be 19% higher in the population with the higher R0.
Dutch parents were best informed, least worried, had the most critical attitude toward the campaign, and the lowest vaccination level compared to other parents.
The highest coverage was found among pediatric patients attending a cystic fibrosis treatment center, in whom a vaccination level of 79% was reached (19 ).
The meningococcal and hepatitis B vaccination coverage level among HCWs in Hajj was suboptimal and the influenza vaccination level was notably low.
One merit of this definition of R0 is that the critical vaccination level is immediately seen to be 1 − 1/ R0, as in simple homogeneous mixing models.
With a mass vaccination level of 5% per day, an average of 18.8 deaths occurred without ring vaccination, and 15.8 deaths occurred when only 5 ring vaccinations per day were possible.
Similar(50)
27 India still has a long way to go to achieve high Hib vaccination levels through the ongoing public sector introduction of the pentavalent vaccine.
The panel noted that among those 65 and older, vaccination levels increased from 33percentt in 1989 to 63percentt in 1998.
Staff vaccination levels should be publicly available and should factor into patient decisions about where to get medical care.
The number of infants dying from whooping cough is rising despite record high vaccination levels, federal health officials said.
Vaccination levels for measles need to be at about 95% to achieve "herd immunity" to prevent outbreaks of the disease.
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