A timeline of outbreaks from February 2022 till now
23 July 2024
5 minute learn
The H5N1 chook flu virus has unfold to dairy cows in the USA, elevating considerations about its unfold to people.
Since 2022, chook flu in the United States has inflamed 168 dairy herds, 7 individuals who have been uncovered to poultry, 4 individuals who have been in shut touch with inflamed farm animals, greater than 100 million chickens and over 9,500 wild birds.
The next is a timeline of the present outbreak within the nation:
July 19
The United States Facilities for Illness Keep watch over and Prevention on Friday showed two further instances of chook flu in Colorado poultry farm employees along with 4 prior to now showed human instances within the state this 12 months.
The well being company additionally stated initial effects from blood samples accumulated from 35 individuals who paintings in dairy farms in Michigan with inflamed herds didn’t display neutralizing antibodies particular to the H5N1 virus, a sign that the illness used to be now not found in a much wider staff.
July 15
Oklahoma changed into the thirteenth US state to stumble on chook flu in dairy cows, the United States Division of Agriculture showed.
July 2
The United States executive awarded $176 million to Moderna to advance building of its chook flu vaccine.
June 7
Wyoming changed into the twelfth state to record an inflamed dairy herd.
June 6
Minnesota changed into the eleventh state to record an inflamed dairy herd.
June 5
Fowl flu outbreak in dairy cows expanded to a tenth state as Iowa reported its first an infection in a herd.
Might 30
A 3rd US dairy employee examined sure for chook flu in 2024 after publicity to inflamed cows, and used to be the primary to endure respiration issues. The an infection used to be the second one human case within the state of Michigan.
Might 22
Every other human case of chook flu is showed in the United States with the an infection of a dairy employee in Michigan. It’s the second one case in people this 12 months after the virus used to be detected in farm animals.
April 26
Colorado changed into the 9th US state to record an inflamed dairy herd.
April 25
Colombia limited the import of red meat and red meat merchandise coming from US states because of chook flu in dairy cows.
April 24
The United States executive stated it’ll require dairy farm animals shifting between states to be examined for chook flu.
April 23
The United States Meals and Drug management stated it had discovered chook flu virus debris in some samples of pasteurized milk, however stated the economic milk provide stays secure because of pasteurization.
April 11
South Dakota changed into the 8th US state to seek out avian influenza in a dairy herd, after the United States Division of Agriculture (USDA) reported infections in North Carolina, Texas, Kansas, Ohio, Michigan, Idaho and New Mexico.
April 4
Fowl flu dairy cow outbreak widened to a dairy herd in Ohio.
April 2
Mexico’s agriculture ministry stated it used to be taking preventative measures to extend surveillance and give a boost to inspections of US cattle imports after chook flu used to be present in dairy farm animals there.
April 1
The 2nd identified human case of chook flu in the USA is reported in an individual from Texas who had touch with dairy cows presumed to be inflamed with the virus.
The virus used to be detected in dairy farm animals in New Mexico, Michigan and Idaho, in conjunction with Texas and Kansas.
March 25
The USDA stated samples of milk accumulated from ill farm animals in Kansas and Texas examined sure for avian flu, however the country’s milk provide used to be secure.
Dec. 12, 2023
Egg manufacturer Cal-Maine Meals stated it had quickly ceased manufacturing at a facility in Kansas after one of the most flock examined sure for avian flu.
Nov. 3, 2023
Arkansas, a big US hen manufacturer, reported its first outbreak of deadly avian flu in a business poultry flock in a 12 months.
Oct. 6, 2023
The US detected its first case of avian flu on a business poultry farm since April, in a flock of 47,300 turkeys in Jerauld County, South Dakota.
April 14, 2023
The United States executive stated it used to be trying out 4 possible chook flu vaccines for poultry, after greater than 58 million chickens, turkeys and different birds had died within the country’s worst outbreak ever.
March 20, 2023
Probably the most global’s main makers of flu vaccines say they may make loads of tens of millions of chook flu photographs for people inside months if a brand new pressure of avian influenza ever jumps around the species divide.
Oct. 7, 2022
Avian flu inflamed a business flock of breeding chickens in Arkansas, widening a pandemic of the illness within the southern area.
National, greater than 47 million birds were killed by way of avian flu or culled to keep watch over its unfold this 12 months within the country’s worst outbreak since a document 50 million birds have been burnt up in 2015.
April 29, 2022
The first identified human case of H5N1 chook flu in the USA seemed in an individual in Colorado, who used to be excited about culling birds at a business poultry facility.
March 7, 2022
Greater than 22 million commercially raised US chickens and turkeys were killed since February 2022 because of outbreaks of a extremely deadly form of chook flu.
March 4, 2022
A chook flu outbreak is reported in a business flock of chickens being raised for meat in Stoddard County, Missouri, taking the unfold of the virus to ten business hen and turkey farms in 4 states.
Feb. 9 , 2022
The USDA reported a pandemic of extremely pathogenic avian flu in an Indiana turkey flock, the country’s first case in a business poultry operation since 2020.