The NHTSA, which started its investigation in 2015, said air bag inflator ruptures have led to two deaths: one in Canada in 2016 involving a 2009 Hyundai Elantra and the other in Michigan in 2021 involving a 2015 Chevrolet Traverse, the agency said. In a statement to the Associated Press, the company said "extensive field testing has found no inherent defect."Ĭar recall roundup: Check latest vehicle recalls hereĪir bag recall: GM recalls nearly 1 million Buick, Chevrolet and GMC SUVs over faulty air bag inflators Air bag inflators have led to injuries and at least two deaths, NHTSA says
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"ARC strongly disagrees with the agency’s 'tentative conclusion' that a safety defect exists in the 67 million toroidal driver and passenger inflators produced during the 18-year period prior to January 2018," Steve Gold, vice president of product integrity for ARC Automotive, Inc., wrote in a response on Thursday. At least 12 vehicle manufacturers have used the inflators in question to make air bag modules for vehicles sold or leased in the United States. Until January 2018, 67 million of the frontal air bag inflators were supplied to air bag system manufacturers, the NHTSA wrote in its letter. 67 million air bag inflators supplied to various manufacturers "Based on currently available information, NHTSA has tentatively concluded that a defect related to motor vehicle safety exists in the subject frontal driver and passenger air bag inflators and demands that ARC issue a Part 573 Recall Report addressing that safety defect," the NHTSA said. were involved in at least two fatal incidents in which the air bag inflators ruptured.Īccording to the NHTSA, once the air bag inflators rupture during frontal air bag deployment, metal fragments can be propelled into the vehicle. The NHTSA, which oversees programs relating to the safety performance of motor vehicles and other equipment, said air bag inflators made by Knoxville-based manufacturer ARC Automotive, Inc. Currently, at least two scientists must generate these three important pieces of information using three separate tests or more.The National Highway Traffic Safety Administration ordered a Tennessee air bag manufacturer to recall 67 million products, but the company has refused to comply, according to a letter the government agency published online. With the next generation of sequencing technology, advancements continue as the laboratory can find information about the species, serovar, and subtype of bacteria in just one test. Now, scientists use DNA testing to further divide each serotype into more subtypes and to detect more outbreaks. Serotyping has been the core of public health monitoring of Salmonella infections for over 50 years. When cases with one serotype increase, they suspect an outbreak and disease detectives start their investigation. Laboratory experts serotype the Salmonella from infected people. Since the 1960s, public health scientists in the US have used serotyping to help find Salmonella outbreaks and track them to their sources.
Serotyping is sometimes referred to as serology, but this is technically inaccurate. Serology refers to the antibodies that form because of a viral or bacterial infection. Serotyping is a subtyping test based on differences in microbial (e.g., viral or bacterial) surfaces. What we learn about the more common serotypes can help us better understand illness and the natural history of all the Salmonella strains. Infections in these groups can be more severe, resulting in long-term health consequences or death. Some groups of people, such as older adults, people with weakened immune systems, and children under five years old have a higher risk for Salmonella infection. Some can cause especially severe illnesses when they infect people while others cause milder illnesses. Others are found in many different animals and all over the world. Some serotypes are only found in one kind of animal or in a single place. Salmonella have many different serotypes. Scientists determine the serotype based on the distinct combination of O and H antigens.
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Each O and H antigen has a unique code number. The H antigens are distinguished by the protein content of the flagella. The O antigens are distinguished by their different chemical make-up. A slender threadlike structure, called the H antigen, that is part of the flagella.The outermost portion of the bacteria’s surface covering, called the O antigen and.For instance, Salmonella bacteria look alike under the microscope but can be separated into many serotypes based on two structures on their surface: Serotypes are groups within a single species of microorganisms, such as bacteria or viruses, which share distinctive surface structures.
Medical illustration of non-typhoidal Salmonella
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