What was in the flu vaccine in 2013?
The 2013-2014 trivalent influenza vaccine was made from the following three viruses: an A/California/7/2009 (H1N1)pdm09-like virus; an A(H3N2) virus antigenically like the cell-propagated prototype virus A/Victoria/361/2011; a B/Massachusetts/2/2012-like virus.
How effective was the flu shot in 2013?
Final vaccine effectiveness (VE) estimates for the 2012-2013 influenza season found that influenza vaccine was 52% (95% CI, 46% to 58%) effective at preventing medically-attended acute respiratory illnesses caused by circulating influenza A and B viruses in people of all ages.
How many cases of flu were there in 2013?
The overall burden of influenza for the 2012-2013 season was an estimated 34 million influenza illnesses, 16 million influenza-associated medical visits, 571,000 influenza-related hospitalizations, and 43,000 flu-associated deaths (Estimated Influenza Disease Burden, by Season — United States, 2010-11 through 2017-18 …
How effective was the 2014 flu vaccine?
How effective was the 2014-2015 flu vaccine? CDC’s end-of-season influenza vaccine effectiveness (VE) estimates for the 2014-2015 season were presented to the Advisory Committee on Immunization Practices (ACIP) on June 24, 2015. CDC’s adjusted overall VE estimate against influenza A and B viruses for all ages was 23%.
Was there a virus in 2013?
June 28, 2013 — The first cases of H3N2 variant virus infection for 2013 were reported this week. H3N2 variant virus, or “H3N2v,” is a non-human influenza virus that normally circulates in pigs but which has infected humans.
When was the first flu vaccine?
1945. The first flu vaccines are approved for use for people who aren’t in the U.S. military.
How many people in the United States died of the flu in 2014?
* 2019 to 2020 season is a preliminary estimate.
How many people died from the flu in 2013?
* 2019 to 2020 season is a preliminary estimate.
How many people died from the flu in 2014?
The overall burden of influenza for the 2014-2015 season was an estimated 30 million influenza illnesses, 14 million influenza-associated medical visits, 591,000 influenza-related hospitalizations, and 51,000 flu-associated deaths (Table: Estimated Influenza Disease Burden, by Season — United States, 2010-11 through …
How many died from the flu in 2016?
The overall burden of influenza for the 2016-2017 season was an estimated 29 million influenza illnesses, 14 million influenza-associated medical visits, 500,000 influenza-related hospitalizations, and 38,000 influenza-associated deaths (Table: Estimated Influenza Disease Burden, by Season — United States, 2010-11 …
Is H1N1 same as bird flu?
A: In the last decade we’ve really had two major circulating forms of virus that we’re particularly concerned about — that is the avian flu, or bird flu, and the swine H1N1 virus. They are both influenza A viruses, but in terms of their genetic makeup and how they behave they are very, very different infections.
How long did H1N1 virus last?
From April 12, 2009 to April 10, 2010, CDC estimated there were 60.8 million cases (range: 43.3-89.3 million), 274,304 hospitalizations (range: 195,086-402,719), and 12,469 deaths (range: 8868-18,306) in the United States due to the (H1N1)pdm09 virus.
How many people died from the flu when it first came out?
It is estimated that about 500 million people or one-third of the world’s population became infected with this virus. The number of deaths was estimated to be at least 50 million worldwide with about 675,000 occurring in the United States.
When did the flu vaccine become FDA approved?
Jul 30, 2010 (CIDRAP News) – The US Food and Drug Administration (FDA) today announced that it has approved the upcoming season’s influenza vaccines, as four manufacturers announced they are starting to ship their first vaccine lots.
How many people died from the flu in 2015 in the USA?
The overall burden of influenza for the 2015-2016 season was an estimated 24 million influenza illnesses, 11 million influenza-associated medical visits, 280,000 influenza-related hospitalizations, and 23,000 flu-associated deaths (Table: Estimated Influenza Disease Burden, by Season — United States, 2010-11 through …
How many people died from the flu in the US in 2019?
Background and Results: 2018-2019 Flu Burden Estimates
CDC estimates that the burden of illness during the 2018–2019 season included an estimated 29 million people getting sick with flu, 13 million people going to a health care provider for their illness, 380,000 hospitalizations, and 28,000 deaths from flu (Table 1).
How many Americans died from flu 2018?
CDC estimates that the burden of illness during the 2018–2019 season included an estimated 35.5 million people getting sick with influenza, 16.5 million people going to a health care provider for their illness, 490,600 hospitalizations, and 34,200 deaths from influenza (Table 1).
What flu was out in 2012?
Overall, 63% of viruses were influenza A and 37% influenza B and of the sub-typed influenza A viruses, about two thirds were A(H1N1)pdm09 and one third A(H3N2). Severe cases occurred mainly in those above 15 years of age and were due mainly to A(H1N1)pdm09 and influenza B.
How many people died from the flu in 2016?
How many people died of the flu 2017?
2017-18 Burden Prevented by Vaccination Estimates
Using this model, CDC estimates that flu vaccination during the 2017–2018 flu season prevented 6.9 million illnesses, 3.6 million medical visits, 94,000 hospitalizations and 6,000 deaths associated with flu. (Table 1).
How many people died of the flu in 2014?
Number of influenza deaths in the United States from 2010 to 2020
|Characteristic||Number of deaths|
How many died from flu 2018?
Conclusion. CDC estimates that influenza was associated with more than 35.5 million illnesses, more than 16.5 million medical visits, 490,600 hospitalizations, and 34,200 deaths during the 2018–2019 influenza season.
How many flu variants are there?
There are four types of influenza viruses: A, B, C and D. Human influenza A and B viruses cause seasonal epidemics of disease (known as flu season) almost every winter in the United States.
Is swine flu still around?
Currently, H1N1 is one of many seasonal flu viruses circulating every winter. In fact, if you’ve had the flu during the past few years, there are chances that it might have been this virus. Due to this, many people today are somehow immune to H1N1 and it’s not as much of a concern as it was back in 2009.
Is swine flu still around 2022?
CDC recommends people take precautions around pigs, including in the fair setting. August 12, 2022—CDC has reported two new human infections with an influenza (flu) virus that usually spreads in pigs, bringing the total number of such infections in the United States during 2022 to three.
What flu happened in 2013?
Over the course of the entire 2012–2013 season, influenza A (H3N2) viruses predominated nationally, followed by influenza B viruses; 2009 influenza A (H1N1) viruses were identified less frequently. Influenza A viruses predominated until the end of February 2013, after which influenza B viruses were detected more often.
Was there a vaccine for the Hong Kong flu in 1969?
Although a vaccine was developed against the virus, it became available only after the pandemic had peaked in many countries. The H3N2 virus that caused the 1968 pandemic is still in circulation today and is considered to be a strain of seasonal influenza.
How many human cases of bird flu were there in the year 2013 who?
In March 2013, in Eastern China, there was an outbreak of the novel H7N9 influenza virus, which although less pathogenic in avian species, resulted in 131 confirmed cases and 36 deaths in humans over a two-month span.
When was the vaccine for the Hong Kong flu?
Ten million doses of the pandemic vaccine had been produced by mid-January 1969, and nearly 1 million people were immunized before the end of February. About 100,000 doses were designated for the mass immunization of schoolchildren.
How many died from Hong Kong flu?
The estimated number of deaths was 1 million worldwide and about 100,000 in the United States. Most excess deaths were in people 65 years and older. The H3N2 virus continues to circulate worldwide as a seasonal influenza A virus.
The pandemic influenza strain, or swine flu, that spread globally in 2009 was referred to as H1N1 and the new bird flu currently spreading in China is A H7N9. Most of us can probably understand what is meant by bird or swine in this context but what do the letters and numbers mean?
Why was bird flu not a pandemic?
The viruses occasionally infect humans and the H5N1 strain has infected more than 400 people since 2003. H5N1 has a high mortality rate in humans, at around 60 per cent, but to date there has been no sustained human to human transmission of the virus, which would need to happen in order for a pandemic to occur.
Was the bird flu a pandemic?
Unlike most pandemics, which emerge randomly, H5N1 has been recognized as a likely pandemic candidate for almost 10 years. Experts from the World Health Organization consider the current pandemic alert level to be stage 3.
How many people have died from the flu 2012?
Is Hong Kong flu H1N1?
The Asian flu was caused by an avian H2N2 influenza A strain, and the Hong Kong flu was caused by an H3N2 strain that was a reassortment of human and avian viruses as well. The H1N1 pandemic which began in 2009–10 was a reassortment virus containing human, avian, and porcine viral elements.
How many died of the Hong Kong flu?
How long did the Hong Kong flu pandemic last?
The outbreak lasted around six weeks, affecting about 15% of the population (some 500,000 people infected), but the mortality rate was low and the clinical symptoms were mild. There were two waves of the flu in mainland China, one between July–September in 1968 and the other between June–December in 1970.
What caused the Hong Kong flu?
The 1968 pandemic was caused by an influenza A (H3N2) virus comprised of two genes from an avian influenza A virus, including a new H3 hemagglutinin, but also contained the N2 neuraminidase from the 1957 H2N2 virus. It was first noted in the United States in September 1968.
Can H1N1 be cured without medicine?
Most people with flu, including H1N1 flu (swine flu), require only symptom relief. Supportive care such as drinking liquids, taking pain relievers for fever and headache, and resting may be helpful.
Is the H1N1 vaccine a live virus?
The 2009 swine flu pandemic vaccines were influenza vaccines developed to protect against the pandemic H1N1/09 virus. These vaccines either contained inactivated (killed) influenza virus, or weakened live virus that could not cause influenza.
Can you get bird flu from eating eggs?
You can’t catch bird flu through eating fully cooked poultry or eggs, even in areas with an outbreak of bird flu.
What is the deadliest bird flu?
The ongoing epizootic.
This strain of H5N1 is incredibly infectious and incredibly deadly to domestic poultry. It is the worst bird flu in recorded history. Even if it never becomes a serious human health problem, it will remain a big deal for farmers and veterinarians.
Is it OK to put out bird feeders now?
There is currently very low risk of an outbreak among wild songbirds, and no official recommendation to take down feeders unless you also keep domestic poultry, according to the National Wildlife Disease Program.
How many people died of the bird flu?
To date, the number of H5N1 WHO-confirmed human cases amounts to 628 with 374 deaths from 15 countries. Human infections tend to occur during December–March and are associated with bird migratory paths and seasonal outbreaks in poultry.