Varicella (Chickenpox)

Chickenpox is a highly contagious disease caused by the varicella-zoster virus (VZV). It can cause an itchy, blister-like rash. The rash first appears on the chest, back, and face, and then spreads over the entire body, causing between 250 and 500 itchy blisters. Chickenpox can be serious, especially in babies, adolescents, adults, pregnant women, and people with a weakened immune system. The best way to prevent chickenpox is to get the chickenpox vaccine.

Chickenpox is monitored to prevent and control outbreaks.

In 2023, the rate per 100,000 of Varicella (Chickenpox) in Alachua County was 0.3 compared to Florida at 2.9. The line graph shows change over time when there are at least three years of data.

Links: Healthy People 2030 | Other Resource

Select Measure Type

Alachua County

County

Year

Count/Rate

Varicella (Chickenpox), Single Year

Click on county name or “Florida” in the legend to hide or show the county or state.

11/2/2024 4:24:41 PM

Data Note(s)

FLHealthCHARTS.gov is provided by the Florida Department of Health, Division of Public Health Statistics and Performance Management.

Data Source: Florida Department of Health, Bureau of Epidemiology

Chart will display if there are at least three years of data.
Multi-year counts are a sum of the selected years, not an average.
Quartiles are calculated when data is available for at least 51 counties.
MOV - Measure of Variability: Probable range of values resulting from random fluctuations in the number of events. Not calculated when numerator is below 5 or denominator is below 20, or count or rate is suppressed. The MOV is useful for comparing rates to a goal or standard. For example, if the absolute difference between the county rate and the statewide rate is less than the MOV, the county rate is not significantly different from the statewide rate (alpha level = 0.05). When the absolute difference between the county rate and the statewide rate is greater than the MOV, the county rate is significantly different from the statewide rate. MOV should not be used to determine if the rates of two different counties, or the county rates for two different years, are statistically significantly different.
Denom - abbreviated for Denominator.
Population estimates are not available for persons whose county of residence is unknown. Given this, the denominator and associated rate are not available.
* - Indicates the county rate is statistically significantly different from the statewide rate.

Rates based on less than 20 cases are not reliable and should be interpreted with caution.
This disease became reportable on November 20, 2006. The first full year of data collection was 2007. Cases occuring in previous years may have been retrospectively identified after becoming reportable. Counts and rates include confirmed and probable cases of Varicella (Chickenpox) (Merlin code 05290).
Data presented here are from Merlin, Florida's web-based reportable disease surveillance system. Note that any data prior to 1992 are not maintained in Merlin and should be interpreted with caution.
Data in this report are aggregated by the date the case was reported to the Bureau of Epidemiology, Florida Department of Health. Cases are assigned to Florida counties based on the county of residence at the time of the disease identification, regardless of where they became ill or were hospitalized, diagnosed, or exposed.
Reports for reportable disease data are produced weekly, monthly, and annually. To access these reports, visit Surveillance Publications. More detailed information on interpreting data can be found in the introduction section of the annual reports. For questions, please contact the Bureau of Epidemiology at (850) 245-4401.
This is primary, quantitative data.
All population-based rates are calculated using July 1 Florida population estimates from the Florida Legislature, Office of Economic and Demographic Research.

Varicella (Chickenpox), Rate Per 100,000 Population, Single Year

Varicella (Chickenpox), Rate Per 100,000 Population, Single Year
	Alachua				Florida
Data Year	Count	Denom	Rate	MOV	Count	Denom	Rate	MOV
2023	1	291,459	0.3		653	22,685,583	2.9	0.2
2022	6	290,623	2.1	1.7	428	22,329,178	1.9	0.2
2021	5	275,435	1.8	1.6	365	22,005,587	1.7	0.2
2020	4	270,405	1.5		348	21,640,766	1.6	0.2
2019	4	266,649	1.5		983	21,268,553	4.6	0.3
2018	5	263,753	1.9^*	1.7	853	20,957,705	4.1	0.3
2017	11	259,349	4.2	2.5	656	20,555,728	3.2	0.2
2016	9	257,478	3.5	2.3	733	20,231,092	3.6	0.3
2015	15	255,631	5.9	3.0	740	19,897,762	3.7	0.3
2014	9	251,760	3.6	2.3	570	19,579,871	2.9	0.2
2013	13	248,526	5.2	2.8	659	19,314,396	3.4	0.3
2012	102	246,893	41.3^*	8.0	815	19,118,938	4.3	0.3
2011	12	247,151	4.9	2.7	861	18,941,742	4.5	0.3
2010	10	247,669	4.0	2.5	977	18,820,280	5.2	0.3
2009	32	246,489	13.0^*	4.5	1,125	18,711,844	6.0	0.4
2008	57	244,664	23.3^*	6.0	1,735	18,636,837	9.3	0.4
2007	17	242,215	7.0	3.3	1,321	18,500,958	7.1	0.4
2006	0	238,704	0.0		59	18,237,596	0.3	0.1

11/2/2024 4:24:42 PM

Data Note(s)

FLHealthCHARTS.gov is provided by the Florida Department of Health, Division of Public Health Statistics and Performance Management.

Data Source: Florida Department of Health, Bureau of Epidemiology

Chart will display if there are at least three years of data.
Multi-year counts are a sum of the selected years, not an average.
Quartiles are calculated when data is available for at least 51 counties.
MOV - Measure of Variability: Probable range of values resulting from random fluctuations in the number of events. Not calculated when numerator is below 5 or denominator is below 20, or count or rate is suppressed. The MOV is useful for comparing rates to a goal or standard. For example, if the absolute difference between the county rate and the statewide rate is less than the MOV, the county rate is not significantly different from the statewide rate (alpha level = 0.05). When the absolute difference between the county rate and the statewide rate is greater than the MOV, the county rate is significantly different from the statewide rate. MOV should not be used to determine if the rates of two different counties, or the county rates for two different years, are statistically significantly different.
Denom - abbreviated for Denominator.
Population estimates are not available for persons whose county of residence is unknown. Given this, the denominator and associated rate are not available.
* - Indicates the county rate is statistically significantly different from the statewide rate.

Rates based on less than 20 cases are not reliable and should be interpreted with caution.
This disease became reportable on November 20, 2006. The first full year of data collection was 2007. Cases occuring in previous years may have been retrospectively identified after becoming reportable. Counts and rates include confirmed and probable cases of Varicella (Chickenpox) (Merlin code 05290).
Data presented here are from Merlin, Florida's web-based reportable disease surveillance system. Note that any data prior to 1992 are not maintained in Merlin and should be interpreted with caution.
Data in this report are aggregated by the date the case was reported to the Bureau of Epidemiology, Florida Department of Health. Cases are assigned to Florida counties based on the county of residence at the time of the disease identification, regardless of where they became ill or were hospitalized, diagnosed, or exposed.
Reports for reportable disease data are produced weekly, monthly, and annually. To access these reports, visit Surveillance Publications. More detailed information on interpreting data can be found in the introduction section of the annual reports. For questions, please contact the Bureau of Epidemiology at (850) 245-4401.
This is primary, quantitative data.
All population-based rates are calculated using July 1 Florida population estimates from the Florida Legislature, Office of Economic and Demographic Research.

Florida

Year

Varicella (Chickenpox), Rate Per 100,000 Population, 2023

At least 51 counties must have rates greater than zero for a quartile map to be displayed.

11/2/2024 4:24:43 PM

Data Note(s)

FLHealthCHARTS.gov is provided by the Florida Department of Health, Division of Public Health Statistics and Performance Management.

Data Source: Florida Department of Health, Bureau of Epidemiology

Chart will display if there are at least three years of data.
Multi-year counts are a sum of the selected years, not an average.
Quartiles are calculated when data is available for at least 51 counties.
MOV - Measure of Variability: Probable range of values resulting from random fluctuations in the number of events. Not calculated when numerator is below 5 or denominator is below 20, or count or rate is suppressed. The MOV is useful for comparing rates to a goal or standard. For example, if the absolute difference between the county rate and the statewide rate is less than the MOV, the county rate is not significantly different from the statewide rate (alpha level = 0.05). When the absolute difference between the county rate and the statewide rate is greater than the MOV, the county rate is significantly different from the statewide rate. MOV should not be used to determine if the rates of two different counties, or the county rates for two different years, are statistically significantly different.
Denom - abbreviated for Denominator.
Population estimates are not available for persons whose county of residence is unknown. Given this, the denominator and associated rate are not available.
* - Indicates the county rate is statistically significantly different from the statewide rate.

Rates based on less than 20 cases are not reliable and should be interpreted with caution.
This disease became reportable on November 20, 2006. The first full year of data collection was 2007. Cases occuring in previous years may have been retrospectively identified after becoming reportable. Counts and rates include confirmed and probable cases of Varicella (Chickenpox) (Merlin code 05290).
Data presented here are from Merlin, Florida's web-based reportable disease surveillance system. Note that any data prior to 1992 are not maintained in Merlin and should be interpreted with caution.
Data in this report are aggregated by the date the case was reported to the Bureau of Epidemiology, Florida Department of Health. Cases are assigned to Florida counties based on the county of residence at the time of the disease identification, regardless of where they became ill or were hospitalized, diagnosed, or exposed.
Reports for reportable disease data are produced weekly, monthly, and annually. To access these reports, visit Surveillance Publications. More detailed information on interpreting data can be found in the introduction section of the annual reports. For questions, please contact the Bureau of Epidemiology at (850) 245-4401.
This is primary, quantitative data.
All population-based rates are calculated using July 1 Florida population estimates from the Florida Legislature, Office of Economic and Demographic Research.

Varicella (Chickenpox), Rate Per 100,000 Population, 2023 MOV

Varicella (Chickenpox), Rate Per 100,000 Population, 2023
County	Count	Denom	Rate	MOV
Florida	653	22,685,583	2.9	0.2
Alachua	1	291,459	0.3
Baker	1	27,779	3.6
Bay	1	187,907	0.5
Bradford	0	26,672	0.0
Brevard	17	638,491	2.7	1.3
Broward	66	1,987,884	3.3	0.8
Calhoun	0	13,838	0.0
Charlotte	5	202,233	2.5	2.2
Citrus	3	160,455	1.9
Clay	2	229,990	0.9
Collier	14	399,587	3.5	1.8
Columbia	1	72,838	1.4
Miami-Dade	44	2,785,095	1.6^*	0.5
DeSoto	1	35,205	2.8
Dixie	2	17,172	11.6
Duval	20	1,051,847	1.9^*	0.8
Escambia	15	334,105	4.5	2.3
Flagler	1	128,632	0.8
Franklin	0	13,031	0.0
Gadsden	4	44,140	9.1
Gilchrist	0	19,380	0.0
Glades	0	12,363	0.0
Gulf	1	16,615	6.0
Hamilton	0	13,621	0.0
Hardee	1	25,696	3.9
Hendry	0	40,836	0.0
Hernando	3	202,468	1.5
Highlands	3	103,994	2.9
Hillsborough	67	1,553,742	4.3^*	1.0
Holmes	0	19,889	0.0
Indian River	6	169,399	3.5	2.8
Jackson	0	49,072	0.0
Jefferson	0	15,133	0.0
Lafayette	0	7,827	0.0
Lake	3	411,761	0.7
Lee	40	823,529	4.9^*	1.5
Leon	7	302,342	2.3	1.7
Levy	1	44,912	2.2
Liberty	0	8,144	0.0
Madison	0	18,617	0.0
Manatee	4	433,051	0.9
Marion	17	401,912	4.2	2.0
Martin	4	164,076	2.4
Monroe	4	84,572	4.7
Nassau	1	98,746	1.0
Okaloosa	9	218,948	4.1	2.7
Okeechobee	4	39,634	10.1
Orange	29	1,513,466	1.9^*	0.7
Osceola	14	444,475	3.1	1.6
Palm Beach	63	1,538,719	4.1^*	1.0
Pasco	31	609,644	5.1^*	1.8
Pinellas	25	979,894	2.6	1.0
Polk	28	791,685	3.5	1.3
Putnam	1	74,579	1.3
St. Johns	3	309,560	1.0
St. Lucie	23	360,957	6.4^*	2.6
Santa Rosa	3	202,197	1.5
Sarasota	6	462,728	1.3^*	1.0
Seminole	12	491,029	2.4	1.4
Sumter	0	148,733	0.0
Suwannee	1	45,405	2.2
Taylor	0	21,778	0.0
Union	0	15,692	0.0
Volusia	36	582,549	6.2^*	2.0
Wakulla	1	36,015	2.8
Walton	4	81,968	4.9
Washington	0	25,871	0.0

11/2/2024 4:24:44 PM

Data Note(s)

FLHealthCHARTS.gov is provided by the Florida Department of Health, Division of Public Health Statistics and Performance Management.

Data Source: Florida Department of Health, Bureau of Epidemiology

Chart will display if there are at least three years of data.
Multi-year counts are a sum of the selected years, not an average.
Quartiles are calculated when data is available for at least 51 counties.
MOV - Measure of Variability: Probable range of values resulting from random fluctuations in the number of events. Not calculated when numerator is below 5 or denominator is below 20, or count or rate is suppressed. The MOV is useful for comparing rates to a goal or standard. For example, if the absolute difference between the county rate and the statewide rate is less than the MOV, the county rate is not significantly different from the statewide rate (alpha level = 0.05). When the absolute difference between the county rate and the statewide rate is greater than the MOV, the county rate is significantly different from the statewide rate. MOV should not be used to determine if the rates of two different counties, or the county rates for two different years, are statistically significantly different.
Denom - abbreviated for Denominator.
Population estimates are not available for persons whose county of residence is unknown. Given this, the denominator and associated rate are not available.
* - Indicates the county rate is statistically significantly different from the statewide rate.

Rates based on less than 20 cases are not reliable and should be interpreted with caution.
This disease became reportable on November 20, 2006. The first full year of data collection was 2007. Cases occuring in previous years may have been retrospectively identified after becoming reportable. Counts and rates include confirmed and probable cases of Varicella (Chickenpox) (Merlin code 05290).
Data presented here are from Merlin, Florida's web-based reportable disease surveillance system. Note that any data prior to 1992 are not maintained in Merlin and should be interpreted with caution.
Data in this report are aggregated by the date the case was reported to the Bureau of Epidemiology, Florida Department of Health. Cases are assigned to Florida counties based on the county of residence at the time of the disease identification, regardless of where they became ill or were hospitalized, diagnosed, or exposed.
Reports for reportable disease data are produced weekly, monthly, and annually. To access these reports, visit Surveillance Publications. More detailed information on interpreting data can be found in the introduction section of the annual reports. For questions, please contact the Bureau of Epidemiology at (850) 245-4401.
This is primary, quantitative data.
All population-based rates are calculated using July 1 Florida population estimates from the Florida Legislature, Office of Economic and Demographic Research.

11/2/2024 4:24:40 PM

Data Note(s)

FLHealthCHARTS.gov is provided by the Florida Department of Health, Division of Public Health Statistics and Performance Management.

Data Source: Florida Department of Health, Bureau of Epidemiology

Chart will display if there are at least three years of data.
Multi-year counts are a sum of the selected years, not an average.
Quartiles are calculated when data is available for at least 51 counties.
MOV - Measure of Variability: Probable range of values resulting from random fluctuations in the number of events. Not calculated when numerator is below 5 or denominator is below 20, or count or rate is suppressed. The MOV is useful for comparing rates to a goal or standard. For example, if the absolute difference between the county rate and the statewide rate is less than the MOV, the county rate is not significantly different from the statewide rate (alpha level = 0.05). When the absolute difference between the county rate and the statewide rate is greater than the MOV, the county rate is significantly different from the statewide rate. MOV should not be used to determine if the rates of two different counties, or the county rates for two different years, are statistically significantly different.
Denom - abbreviated for Denominator.
Population estimates are not available for persons whose county of residence is unknown. Given this, the denominator and associated rate are not available.
* - Indicates the county rate is statistically significantly different from the statewide rate.

Rates based on less than 20 cases are not reliable and should be interpreted with caution.
This disease became reportable on November 20, 2006. The first full year of data collection was 2007. Cases occuring in previous years may have been retrospectively identified after becoming reportable. Counts and rates include confirmed and probable cases of Varicella (Chickenpox) (Merlin code 05290).
Data presented here are from Merlin, Florida's web-based reportable disease surveillance system. Note that any data prior to 1992 are not maintained in Merlin and should be interpreted with caution.
Data in this report are aggregated by the date the case was reported to the Bureau of Epidemiology, Florida Department of Health. Cases are assigned to Florida counties based on the county of residence at the time of the disease identification, regardless of where they became ill or were hospitalized, diagnosed, or exposed.
Reports for reportable disease data are produced weekly, monthly, and annually. To access these reports, visit Surveillance Publications. More detailed information on interpreting data can be found in the introduction section of the annual reports. For questions, please contact the Bureau of Epidemiology at (850) 245-4401.
This is primary, quantitative data.
All population-based rates are calculated using July 1 Florida population estimates from the Florida Legislature, Office of Economic and Demographic Research.

		Florida Department of Health Bureau of Community Health Assessment Division of Public Health Statistics and Performance Management


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