When was the last pertussis outbreak?
Pertussis Outbreaks. Pertussis (whooping cough) is a common (endemic) disease in the United States. There are peaks in reported cases of pertussis every few years and frequent outbreaks. In 2012, the largest peak in recent years, states reported 48,277 cases of pertussis.
How many cases of whooping cough were in the US in 2015?
Pertussis Cases by Year (1922-2019)
| Year | No. Reported Pertussis Cases |
|---|---|
| 2014 | 32,971 |
| 2015 | 20,762 |
| 2016 | 17,972 |
| 2017 | 18,975 |
What is the mortality rate for pertussis?
The annual worldwide incidence of pertussis is estimated to be 48.5 million cases, with a mortality rate of nearly 295,000 deaths per year. The case-fatality rate among infants in low-income countries may be as high as 4%.
Why is pertussis called 100 days?
Whooping cough used to be called the “100-day cough” because it can last for weeks to months. The illness often starts like the common cold, with a runny nose, sneezing, and a mild cough or fever. After 1 to 2 weeks, severe coughing starts. The cough often ends with a whooping sound as air is inhaled.
What time of year is pertussis most common?
Although infection can occur throughout the year, be particularly cautious during the summer and fall months when pertussis cases tend to peak. Those who have had an outbreak in their community should be especially vigilant about early symptoms.
Is whooping cough On The Rise 2021?
Pima County Health reports increase in whooping cough in infants and young children. TUCSON, Ariz. (KOLD News 13) -The Arizona Health Department says they have seen 53 cases of whooping cough (pertussis) in 2021, with many of them occurring in Pima County in infants and young children.
Why do outbreaks of whooping cough still occur?
Whooping cough, a potentially life-threatening childhood illness, all but disappeared in the 1940s after a vaccine was developed. But in recent decades, the illness has been making a comeback. Changes in the vaccine and waning immunity are likely contributing to the resurgence of the illness, according to experts.
Is pertussis on the rise?
Since the 1980s, there has been an increase in the number of reported cases of pertussis in the United States. In 2010, CDC saw an increase in reported cases among 7 through 10 year olds. Similar trends occurred in the following years; however, CDC also observed an increase in cases among teens.
How common is pertussis in adults?
Scientific studies suggest that up to 1 in 20 adults with a cough that lasts for more than two or three weeks may have pertussis. The severity of symptoms may vary in adults. Symptoms are often less severe in adults who have gained some protection against whooping cough from a previous immunization or infection.
How common is pertussis 2020?
From January 1, 2020 through April 30, 2020, 174 pertussis cases were reported in 38 counties. Since 2015, the number of pertussis cases reported annually remained stable. In 2020, case counts were slightly higher than those seen during non-peak years at this time, as indicated by the white bars in the graph.