Prevalence and Incidence of Invasive group A Streptococcal disease
Invasive group A Streptococcal disease Prevalence: Book Excerpts
Incidence (annual) of Invasive group A Streptococcal disease:
2,382 annual cases notified in USA 1999 (MMWR 1999); 1.95 per 100,000 in Canada 20001 ... see also overview of Invasive group A Streptococcal disease.
Incidence Rate:
approx 1 in 114,189 or 0.00% or 2,382 people in USA [Source statistic for calcuation: "2,382 annual cases notified in USA 1999 (MMWR 1999); 1.95 per 100,000 in Canada 20001" -- see also general information about data sources]
Incidence extrapolations for USA for Invasive group A Streptococcal disease:
2,382 per year,
198 per month,
45 per week,
6 per day,
0 per hour,
0 per minute,
0 per second.
[Source statistic for calculation: "2,382 annual cases notified in USA 1999 (MMWR 1999); 1.95 per 100,000 in Canada 20001" -- see also general information about data sources]
Incidence of types of Invasive group A Streptococcal disease:
For details see incidence of types of Invasive group A Streptococcal disease analysis; summary of available incidence by type data:
Prevalance of Invasive group A Streptococcal disease:
About 9,400 cases of invasive GAS disease occurred
in the United States in 1999. Of these, about 300 were STSS and
600 were necrotizing fasciitis. In contrast, there are several
million cases of strep throat and impetigo each year. (Source: excerpt from Group A Streptococcal (GAS) Disease General: DBMD)
...
Approximately 8,800 annual cases
of invasive disease (3.2/100,000 population) occurred in 2000;
approximately 4% were STSS and 6% were NF. (Source: excerpt from Group A Streptococcal (GAS) Disease: DBMD)
Prevalence/Incidence of Invasive group A Streptococcal disease: Online Medical Books
16 MEDICAL BOOKS ONLINE!
Review excerpts from medical books online, free, without registration,
for more information about the prevalence and/or incidence of Invasive group A Streptococcal disease.
Acute poststreptococcal glomerulonephritis:
Causes and incidence
(Professional Guide to Diseases (Eighth Edition))
APSGN results from the entrapment and collection of antigen-antibody (produced as an immunologic mechanism in response to streptococcus) in the glomerular capillary membranes, inducing inflammatory damage and impeding glomerular function. Sometimes, the immune complement further damages the glomerular membrane. The damaged and inflamed glomerulus loses the ability to be selectively permeable, and allows red blood cells (RBCs) and proteins to filter through as the glomerular filtration rate (GFR) falls. Uremic poisoning may result.
APSGN is most common in males ages 3 to 7, but it can occur at any age. Incidence is rising in the United States and Europe, with epidemics occurring in developing countries in Africa, the West Indies, and the Middle East.
Up to 95% of children and up to 70% of adults with APSGN recover fully; the rest may progress to chronic renal failure within months.
» READ BOOK EXCERPT ONLINE »
Source: Professional Guide to Diseases (Eighth Edition), 2005
Strep Infection: Invasive Group A β Hemolytic Streptococcus:
Strep Infection: Invasive Group A β Hemolytic Streptococcus - epidemiology
(The 5-Minute Pediatric Consult)
The rate of STSS and fatal cases of invasive GABHS appear to be lower in children as compared with adults.
Strep Infection: Invasive Group A β Hemolytic Streptococcus - incidence
- Since the mid-1980s, there has been a notable increase in the incidence, morbidity, and mortality.
- It is estimated that the annual incidence in the US is 3.5 cases per 100,000 persons, ~8,500 cases per year.
» READ BOOK EXCERPT ONLINE »
Source: The 5-Minute Pediatric Consult, 2008
About prevalence and incidence statistics:
The term 'prevalence' of Invasive group A Streptococcal disease usually refers to the estimated population
of people who are managing Invasive group A Streptococcal disease at any given time.
The term 'incidence' of Invasive group A Streptococcal disease refers to the annual diagnosis rate,
or the number of new cases of Invasive group A Streptococcal disease diagnosed each year.
Hence, these two statistics types can differ:
a short-lived disease like flu can have high annual incidence but low prevalence,
but a life-long disease like diabetes has a low annual incidence but high prevalence.
For more information see about prevalence and incidence statistics.
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