STD Surveillance
Chlamydia and Gonorrhea Cases in West Virginia, By Age and Gender, CY 2009, CY 2010, and CY 2011
In 2011, there were 4,255 cases of chlamydia in West Virginia. This is an increase of 18% from 2009 numbers and an increase of 10% from 2010 numbers. The majority of cases in 2011 were among females, representing 72% of cases in that year. The age group with the greatest number of cases in 2011 was ages 20 to 24 years, accounting for 42% of all cases. The second and third largest age groups were ages 15 to 19 years and 25 to 29 years, representing 33% and 13% of cases, respectively.
With respect to gonorrhea, there were 767 cases in West Virginia in 2011. This number represents a 61% increase since 2009 and a 32% increase since 2010. As with chlamydia, women exhibit a higher incidence, accounting for 59% of cases. The age group with the highest number of cases is ages 20 to 24 years, representing 39% of cases in 2011, followed by ages 15 to 19 (20% of cases) and 25 to 29 years (17% of cases).
Ct n GC by Age - Gender 2009-2011.pdf
Early Syphilis Cases and Rates per 100,000 Population, West Virginia, CY 2009 – 2011
Since 2009, the number of early syphilis cases in West Virginia has steadily decreased. In 2009 there were 16 cases reported from ten counties. In 2010 there were only ten cases reported from eight counties. In 2011, there were four cases reported from three counties. Overall, this represents a decrease in state-wide incidence rates* from 0.86 per 100,000 in 2009 to 0.22 per 100,000 in 2011. The county with the greatest incidence rate varies by year—in 2009 it was Hardy County with 28.52 cases per 100,000, in 2010 it was Hardy County with an incidence rate of 14.26 cases per 100,000, and in 2011 it was Fayette County with an incidence rate of 2.17 cases per 100,000.
* According to the CDC, all rates based on numbers less than 12 should be interpreted with caution because the estimates have relative standard errors greater than 30% and are considered unreliable.
ES Rates 2009-2011.pdf
Syphilis Cases in West Virginia, By Age and Gender, CY 2009 – 2011
The number of cases diagnosed in West Virginia in each syphilis sub-category decreased between 2009 and 2011. The diagnosis of primary and secondary syphilis decreased by 50% from 2009 to 2011 (from eight to four cases). In 2011, 100% of the four diagnosed cases of primary and secondary syphilis were among males. Three of these cases (75%) were among males aged 45 years or older, while one case (25%) was diagnosed among males aged 15 to 19 years.
With respect to early latent syphilis, zero cases were diagnosed in West Virginia in 2011, a decrease of 100% from eight cases in 2009. For late latent syphilis, the number of cases decreased from seven in 2009 to three in 2011 (a decrease of 57%). In 2011, 33% of cases occurred among females and 67% among males. In addition, one-third of cases were diagnosed among individuals aged 30 to 34 years and two-thirds were diagnosed among individuals aged 45 years or older.
The two final sub-categories of syphilis infection are latent syphilis, unknown duration, and late syphilis with symptomatic manifestations. With respect to the latter category, zero cases were diagnosed in 2011 in West Virginia, a decline of 100% from four cases in 2009. For latent syphilis, unknown duration, two cases were diagnosed in 2011, representing a 67% decline in the number of cases from six in 2009. In 2011, both cases of latent syphilis, unknown duration, were diagnosed among males between the ages of 25 and 34 years.
Syphilis By Age-Gender 2009-2011.pdf
Chlamydia Cases and Rates per 100,000 Population, West Virginia, CY 2009 – 2011
In 2011, there were 4,255 cases of chlamydia diagnosed in West Virginia, representing a statewide incidence rate of 229.63 per 100,000. This is an increase from 3,601 cases in 2009 (194.33 per 100,000 incidence rate) and 3,867 cases in 2010 (208.69 per 100,000 incidence rate). In each year from 2009 through 2011, chlamydia cases have been diagnosed in all 55 West Virginia counties.
The counties with the highest number and incidence rates of chlamydia cases are the same each year. Kanawha County consistently has the highest number of cases with 756 in 2011, 746 in 2010, and 599 in 2009. Cabell County has the second highest number of cases, ranging from 502 in 2011 to 371 in 2009. Finally, Monongalia County has the third highest number of cases, ranging from 428 in 2011 to 328 in 2009. The order changes when looking at incidence rates of chlamydia across West Virginia counties. Marion County consistently has the highest incidence rate with a rate of 651.20 cases per 100,000 in 2011, 732.60 cases per 100,000 in 2010, and 492.92 cases per 100,000 in 2009. Cabell County has the second highest incidence rate, ranging from 521.18 cases per 100,000 in 2011 to 385.18 per 100,000 in 2009. Finally, Monongalia County has the third highest incidence rate in West Virginia, ranging from 444.96 cases per 100,000 in 2011 to 341.0 per 100,000 in 2009.
Ct Rates 2009-2011.pdf
Gonorrhea Cases and Rates per 100,000 Population, West Virginia, 2009-2011
In 2011, there were 767 cases of gonorrhea in West Virginia, occurring in 44 out of 55 counties. This represents an increase from 2009 in which there were 475 cases in 35 counties and 2010 in which there were 579 cases in 37 counties. Incidence rates have also increased steadily from 25.63 cases per 100,000 in 2009 to 31.25 cases per 100,000 in 2010, and 41.39 cases per 100,000 in 2011.
The West Virginia county with the highest number of cases varies slightly by year. In 2009, Kanawha County had the greatest number of cases with 80, followed by Cabell County with 72 and Mercer County with 60 cases. In 2010 and 2011, Cabell County had the highest number of cases (77 and 102 cases, respectively). In both years it was followed by Kanawha County (75 cases in 2010 and 99 cases in 2011). Monongalia County had the third highest number of cases in 2010 with 71 cases, while Mercer County had the third highest number of cases in 2011 with 92 cases.
When looking at incidence rates, Marion County had the highest incidence rate in both 2010 and 2011 (180.89 cases per 100,000 and 226.11 cases per 100,000, respectively). Mercer County had the second highest incidence rate in 2011 with 147.76 cases per 100,000, followed by Cabell County with 105.90 cases per 100,000. In 2010, Ohio County had the second highest incidence rate with 105.75 cases per 100,000, followed by Cabell County with 79.94 cases per 100,000. Finally, in 2009, Mercer County had the highest incidence rate (96.36 per 100,000), followed by Marion County (94.97 per 100,000), and Cabell County (74.75 per 100,000).
GC Rates 2009-2011.pdf
2008-2010 Reports:
WV Syphilis By Age
WV Chlamydia & Gonorrhea by Age
WV Chlamydia Rates by County
WV Early Syphilis Rates by County
WV Gonorrhea Rates by County
2010 High Risk Overlay - High Morbidity
Chlamydia in WV 2006-2010
Gonorrhea in WV 2006-2010
Syphilis in WV 2006-2010