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Since its emergence in 2009, the A(H1N1) virus has caused rare cases of severe disease in otherwise healthy, young adults, including pregnant women. In contrast, the A(H3N2) virus is more likely to cause severe disease and death in older people.
12 kwi 2022 · Cold symptoms are limited to the nose and throat (e.g. runny nose, sneezing, watery eyes, throat irritation and headache). The symptoms usually occur gradually and only rarely cause a high fever or shivers/aches in the body.
8 wrz 2023 · Cold symptoms typically subside within 7 to 10 days, while the flu typically lasts three to seven days, with severe symptoms subsiding after a few days.
Overview. Before the H1N1 pandemic in 2009, the influenza A (H1N1) virus had never been identified as a cause of infections in people. Genetic analyses of this virus have shown that it originated from animal influenza viruses and is unrelated to the human seasonal H1N1 viruses that have been in general circulation among people since 1977.
15 sty 2019 · What is a cold and what is the flu? A cold and the flu are viral infections. They both affect your respiratory system. This includes your throat, nose, airway and lungs. It is difficult to tell the two apart. The flu is generally worse than a cold. It is common to get a cold more than once a year.
8 wrz 2020 · H1N1 influenza infections can cause symptoms such as rhinorrhea, rigors, myalgia, headache, fever, chills, loss of appetite, and, possibly, lower respiratory tract disease and gastrointestinal disease. Rarely, H1N1 influenza can lead to acute respiratory distress syndrome and secondary bacterial sepsis.
7 sie 2024 · The H1N1 virus—known as swine flu—is one type of influenza A virus. Influenza A (H1N1) viruses still exist today. Scientists call it the A (H1N1)pdm09 virus. Influenza type A and type B viruses cause disease epidemics in people during flu season. During most years, this is the winter months.
