HDV seroprevalence rates
were high among PWIDs from northern Vietnam (30.
In a related study from the Netherlands comparing serosurveillance rates of HR-HPV in the periods 1995 - 1996 and 2006 - 2007, overall HR-HPV seroprevalence rates
were significantly higher in the later survey, compared with the earlier survey across all age groups.
Considering that the high leptospiral seroprevalence rates
of the cattle and buffalos in previous studies in Iran and East Azarbaijan province [18,23,41] and with attention to the fact that sheep are usually in contact with cattle directly or indirectly in the most regions of the province, therefore this is predicted that sheep may be one of the important animals in epidemiology of the infection in Iran.
In developed countries a small proportion of subjects have circulatory antibodies to HEV, while in India which is endemic for HEV, seroprevalence rates
of anti-HEV antibodies are higher, although with considerable variations between regions (Table II).
6 Similar seroprevalence rates
of 90 100% were also found in India.
This represents a significant rise in the HIV seroprevalence rates
among psychiatric patients admitted to Town Hill Hospital.
In Cameroon, HIV seroprevalence rates
in 1994 were at a relatively low 3.
As one of the poorest countries in the world, Haiti also has the highest seroprevalence rates
in the Caribbean and the highest rate outside of sub- Saharan African.
Comparing these estimates with the attrition rates due to sickness and death found in our sample, one observes that the rank correlation across the five countries is high: the countries with the highest seroprevalence rates
also have the highest attrition rates due to sickness and death.
An analysis of 1987 HIV seroprevalence rates
and female-male ratios found that higher HIV prevalence is associated with urban areas in which there are fewer young adult women than men (Over and Piot 1993).
forestry and agricultural workers), similar or higher seroprevalence rates
have been described.
But the available data do not show a consistent decline in childhood HAV seroprevalence rates
and increased susceptibility to HAV in young adults.