Some, such as the plague of justinian and swine flu, are subject to debate based on new evidence despite the persistence of disease and pandemics throughout history, theres one consistent trend over time a gradual reduction in the death rate. A timeline of the events in the swine flu outbreak. First completed clinical trials by a company for 2009 h1n1 vaccine in brazil. Pandemics occur several times each century and can range in severity from the 2009 h1n1 pandemic to the crippling 1918 flu pandemic. Pandemic influenza emerges as a result of a new flu virus which is markedly different from recently circulating strains.
The plans had been developed after the bird flu outbreaks of late 1990s. Many of the death toll numbers listed above are best estimates based on available research. Jun 16, 2017 the plan reflects lessons learned during the 2009 h1n1 pandemic, acknowledges preparedness gaps, and sets a broader vision that incorporates new technology and changes to healthcare delivery. The existence of this antibody may account for the unusual age distribution of severe flu cases during pandemics. Recent h5n1 avian influenza epizootics associated with sporadic human fatalities have heightened concern that a new influenza pandemic, one at least as lethal as that of 1918, could be developing. In june 2010, a team at the mount sinai school of medicine reported the 2009 flu pandemic vaccine provided some crossprotection against the 1918 flu pandemic strain. An interactive graphic showing the timeline of the 2009 h1n1 pandemic is available with the full text of this article at. Learn more about the timeline of major events that took place during the 2009 h1n1 pandemic. The centers for disease control and prevention cdc reports the earliest onset of h1n1 in the u. The 2009 h1n1 pandemic provided public health authorities a chance to implement new plans designed to respond to pandemic illness. Cases of pandemic h1n1 influenza 2009 have been confirmed in most other countries throughout the world by the world health organization. This article covers the chronology of the 2009 novel influenza a h1n1 pandemic. This is a table containing the figures from the ecdc influenza a situation updates issued in august 2009 roughly three times a week.
Mar 16, 2020 wuhan virus is not the first viral pandemic america has had to contend with. Theres no sense in duplicating 2009 swine flu outbreak by country here. In response to cases of swine influenza ah1n1, reported in mexico and the united states of america, on 25 april 2009 the world health organization. See a timeline below of pandemics that, in ravaging human populations, changed history. Influenza a viruses are the primary cause of seasonal influenza in humans, and they are constantly evolving.
Ppt 2009 h1n1 flu swine flu powerpoint presentation. Pandemic preparedness and response lessons from the h1n1. Global dissemination of the virus was further expedited by the unprecedented rates of passenger travel that characterize the modern era. Cases of h1n1 virus are confirmed in mexico and the usa 24 april. No one will forget this current panic, but most have forgotten h1n1. An overview congressional research service 1 synopsis on june 11, 2009, in response to the global spread of a new strain of h1n1 influenza flu, the world health organization who declared the outbreak to be a flu pandemic, the first since 1968.
The genetic material originates from three different species. As of december 1, 30 countries in africa had reported cases and 7 countries in africa had reported a total of 108 deaths. April 15 first human infection with new influenza a h1n1 virus detected in california. Public health service recommends annual flu vaccination for people at high risk. Read fast facts from cnn about the h1n1 influenza virus, also known as swine flu. This is a table containing the figures from the who influenza a situation updates issued in june 2009 roughly three times a week. Pandemic subsides, but virus h1n1 continues to circulate seasonally for 38 years. It was the first pandemic to occur since 1968, when the hong kong flu claimed the lives of more than 750,000 people globally. Flulabsurge is a spreadsheetbased program designed to assist laboratory directors forecast demand for specimen testing during the next influenza pandemic i. Flag icons denote the first announcements of confirmed cases by the respective nationstates, their first deaths and other major events such as their first intergenerational cases, cases of zoonosis, and the start of national vaccination campaigns, and relevant sessions and announcements of the world health. Lasting from january 1918 to december 1920, it infected 500 million people about a quarter of the worlds population at the time. Asian influenza h2n2 after the influenza pandemic of 1918, influenza went back to its usual pattern of regional epidemics of lesser virulence in the 1930s, 1940s, and early 1950s. Impact of the fall 2009 influenza ah1n1pdm09 pandemic on.
It was detected first in the united states and spread quickly across the united states and the world. Influenza pandemic h1n1 of 2009, also called h1n1 flu, byname swine flu, the first major influenza outbreak in the 21st century, noted for its rapid global spread, which was facilitated by an unusually high degree of viral contagiousness. In every single pandemic thats ever been recorded, mortality estimates decline over time when discussing the mortality rates estimated for the h1n1 swine flu in 2009 2010, asprey notes that the who reduced their mortality rates for this four years after their initial estimates were released. First isolation of influenza, proving that flu is caused by a virus not a bacterium. In 2009, at the height of the h1n1 pandemic commonly referred to as swine flu, the u. This article covers the chronology of the 2009 novel influenza a pandemic. The 2009 h1n1 influenza pandemic pubmed central pmc. The h1n1 flu pandemic of 2009 10 killed an estimated 284,500 people, according to centers for disease control and prevention cdc scientists an estimate that is 15 times higher than the previously recorded official death toll. Pandemic influenza viruses often cause severe disease in middleaged adults. A new strain of influenza a virus, with quadruple segment translocation in its rna, caused an outbreak of human infection in april 2009 in usa and mexico. Read more on the who website who directorgenerals opening remarks at the media briefing on covid19 11 march 2020. China hong kong special administrative region, costa rica, denmark, france, and the republic of korea join the list.
Yes the table do the things better, but the timeline is a good idea to illustrate the tendency of the influenza, too. Vaccines are one of the most effective ways to protect people during influenza. Severe pandemic 2009 h1n1 influenza disease due to pathogenic. Communityflu is a software program that simulates the spread of influenza through a model community, and the impact of a variety of potential interventions e.
Chronological overview of the 20092010 h1n1 influenza pandemic. Coronavirus is ten times deadlier than the 2009 swine flu pandemic and a vaccine will be needed to halt it, the world health organisation has said. Pandemic influenza overview washington state department of. Public health service recommends annual flu vaccination for people at high risk of serious flu complications. Nov 27, 20 the swineflu pandemic of 2009 may have killed up to 203,000 people worldwide10 times higher than the first estimates based on the number of cases confirmed by lab tests, according to a new. The death toll is estimated to have been anywhere from 17 million to 50 million, and possibly as high as 100 million, making it one of the deadliest pandemics in. Coronavirus 10 times deadlier than 2009 swine flu pandemic. In publishing this incorrect information, you are saying that flying pig flu is already much, much worse than 1918 spanish flu. This virus was first detected in the united states in april 2009. Below is a timeline of major events that took place during the 2009 h1n1 pandemic. In the temperate region of the southern hemisphere represented by countries such as chile, argentina, australia, new zealand, and south africa, influenza activity continues to decrease or return to baseline. More information if there is an outbreak of pandemic flu in your community.
The 2009 flu pandemic hit africa two months later than other continents with the first case reported in egypt on june 2, 2009. A flu pandemic occurs when a new flu virus spreads to people all over the world. The pandemic h1n1 2009 influenza a virus ph1n1 2009 virus is antigenically unrelated to human seasonal influenza viruses but genetically related to viruses that have been circulating in swine for a number of yearsnorth american h3n2 triple reassortment, classical swine h1n1 lineage, and the eurasian avianlike swine h1n1 virus garten 2009. This timeline of the 2009 influenza pandemic runs from the first described cases in california in april 2009 to july 10th 2010 when the who director general declared that the pandemic was over. H2n2 flu virus emerges to trigger a pandemic, replacing the 1918 h1n1 pandemic virus. The 1918 to 1919 h1n1 influenza pandemic is among the most deadly events in recorded human history, having killed an estimated 50 to 100 million persons. There were signs that swine flu posed a human pandemic threat over a decade ago, yet no one paid any attention. Mar 11, 2020 the most recent was the 2009 swine flu pandemic. Influenza originally the asiatic flu or russian flu as it was called, this strain was thought to be an outbreak of the influenza a virus subtype h2n2, though recent discoveries have instead found the cause to be the influenza a virus subtype h3n8. The 2009 10 flu pandemic or swine flu began march 17, 2009 in mexico. Europe has now entered a new interpandemic phase of seasonal influenza.
A pandemic happens when a new virus spreads to people all over the world. In contrast, the 2009 h1n1 influenza pandemic virus was generated by reassortment between two wellestablished swine influenza virus lineages. President barack obama waited until millions were infected and thousands were dead before declaring a public health emergency concerning swine flu, the h1n1 virus. An influenza pandemic is a global outbreak of a new influenza a virus. Evolution of the 2009 h1n1 influenza virus pandemic maryland, the nation and the world. It was the least affected continent symptoms of h1n1 swine flu are like regular flu symptoms and include fever, cough, sore. The centers for disease control and prevention receives reports of 12 cases of human infection with swine flu. With the first isolation of a virus from humans in 1933 5, speculation began about the possible role of a similar virus in 1918. There was a global outbreak which lasted from 2009 to. It is spreading more slowly than expected and the latest figures show a flattening, or even a dip, in new infections. Flusurge is a spreadsheetbased model which provides hospital administrators and public health officials estimates of the surge in demand for hospitalbased services during the next influenza pandemic. This virus is spreading from persontoperson worldwide.
Flag icons denote the first announcements of confirmed cases by the. The horrific scale of the 1918 influenza pandemic known as the spanish flu is hard to. Centers for disease control cdc suggested americans should shut down schools, begin working from. Who announces an outbreak of human cases of h1n1 confirmed.
First novel 2009 h1n1 flu infections were reported by cdc to the world health organization who through the u. Cnn hid swine flu for obama, went gonzo on wuhan flu under. The last pandemic, the 2009 h1n1 virus known as swine flu, ended in august 2010. While there is no flu pandemic, the world health organization who characterizes covid19 as a pandemic as of march 11, 2020. Some studies estimated that 11 to 21 percent of the global popu. First described in april 2009, the virus appeared to be a new strain of h1n1, which resulted from a previous triple reassortment of bird, swine, and human flu viruses further combined with a eurasian pig flu virus, leading to the term swine flu. The spanish flu, also known as the 1918 flu pandemic, was an unusually deadly influenza pandemic. By june 1, who was reporting more than 17,400 cases and 115 deaths worldwide, and 10 days later margaret chan, director general of who, declared the swine flu outbreak a pandemic. However it also contains global events of relevance to europe, such as declarations of. Spring and fall waves of influenza flu activity cause the average life expectancy in the united states to fall by 12 years.
Mar 21, 2020 in 2009, a new h1n1 influenza virus emerged, causing the first global flu pandemic in 40 years. The table can by sorted by country, date of first confirmed case or date of first confirmed case by continent. For each country or territory, the table lists the number of confirmed cases of swine flu on the first reported day each month, and the latest figure. It took president barack obama millions infected and over 1,000 deaths to declare the h1n1 flu a health emergency, but president donald trump declared a health emergency befor. Flag icons denote the first announcements of confirmed cases by the respective nationstates, their first deaths and other major events such as their first intergenerational cases. Find out more information about the covid19 pandemic. Schuchat was part of the leadership team that guided cdcs 2009 h1n1 influenza pandemic response, often acting as the face of cdc, explaining developments and keeping the public uptodate on the pandemic situation. A timeline of events in the swine flu outbreak fox news. Nov 10, 2009 the 2009 swine flu pandemic may turn out to be the weakest in history. Its a new influenza virus causing illness in people. In response to cases of swine influenza ah1n1, reported in mexico and the united states of america, on 25 april 2009. How did america react to that last pandemic 10 years ago. H1n1 case estimates and timeline april 2009 23 april. The who raises pandemic level alert to phase 5, a strong signal that a pandemic is imminent.
From 10 august, ecdc only published deaths totals outside its area. The swine influenza virus at the root of the 2009 pandemic was a newly identified strain of influenza a subtype h1n1. The swine flu pandemic of 2009 may have killed up to 203,000 people worldwide10 times higher than the first estimates based on the number of cases confirmed by lab tests, according to a new. Studying the similar features of the 1918 and 2009 influenza pandemics may provide better control of influenza pandemics in the future. Mexico is up to 25 deaths, but officials there say the disease seems to be on the decline. During the 2009 h1n1 influenza pandemic nearly every decision associated with new vaccine development and dissemination occurred from the spring of 2009, when the novel virus first emerged, to the fall of 2009, when the new vaccines started reaching the thighs, arms and noses of vaccinees. As groups study the 2009 pandemic response, many point to the need for quicker development and distribution of influenza vaccine. Does anyone have more than a vague recollection of h1n1, also known as swine flu. Flawed comparison on coronavirus, h1n1 emergency timelines.
Bruce gellin, director of the national vaccine program office, told abc news. When a new kind of flu virus appears for which there is no immunity and no existing vaccine, it can spread rapidly from country to country. The first two cases of the 2009 flu pandemic in costa rica, both of whom had traveled to mexico, were confirmed on 28 april. Jun 12, 2009 if the mortality rate was over 2% it would be a the most serious form of pandemic for which the who recommends draconian action such as closing national boarders. An influenza pandemic is an epidemic of an influenza virus that spreads on a worldwide scale and infects a large proportion of the world population. A flu fighter examines the central operating picture cop inside cdcs emergency operations center. In 2009, a new h1n1 influenza virus emerged, causing the first global flu pandemic in 40 years.
In 2005, hhs released its first pandemic influenza plan, which went through interim updates in 2006 and 2009. How stocks reacted during past flu pandemics and steps you. On 11 june 2009, who, noting sustained communitylevel outbreaks of influenza a h1n1 in at least one other country in other who regions, raised the alert level to its maximum six, thereby declaring an influenza a h1n1 pandemic. It describes events from the perspective of european union and european economic area institutions and countries. If you go back and look at the swine flu, and what happened with the swine flu.
In contrast to the regular seasonal epidemics of influenza, these pandemics occur irregularly there have been five influenza pandemics during the last 140 years. The 2009 influenza pandemic ah1n1pdm09 of swine origin and the continued circulation of highly pathogenic avian h5n1 strain in humans are stark reminders of the unpredictable nature of the. Pandemics happen when new novel influenza a viruses emerge which are able to infect people easily and spread from person to person in an efficient and sustained way. This new h1n1 virus contained a unique combination of influenza genes not previously identified in animals or people. On 11 march 2020, the world health organization who external site declared the coronavirus, covid19, a pandemic. Did obama declare swine flu an emergency only after. As of 17 october 2009, worldwide there have been more than 414,000 laboratory confirmed cases of pandemic influenza h1n1 2009 and nearly 5000 deaths reported to who. This timeline of the 2009 influenza pandemic runs from the first described cases in.
Shots health news a fresh analysis finds that the death toll from the h1n1 swine flu in 2009 10 was severely underestimated. Compared with past influenza pandemics, the median reproduction number during the 2009 pandemic was similar to the 1968 pandemic, or. This page summarises the figures from the who influenza a situation updates issued roughly once every other day, and since 6 july from ecdc. As part of its routine seasonal flu monitoring activities, mexican health authorities collect 51 specimens positive for influenza a. The cdc also points out that although the 2009 flu pandemic mostly affected children and. The world health organisations emergency committee raises the pandemic threat level for swine flu from phase three. The 2009 influenza ah1n1 pandemic was declared over in august 2010 by the world health organization. The 2009 swine flu pandemic was an influenza pandemic that lasted from january 2009 to august 2010, and the second of the two pandemics involving h1n1 influenza virus, albeit a new strain.