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In addition to varying throughout the day, normal body temperature may also differ as much as 0.5 °C (0.90 °F) from one day to the next, so that the highest or lowest temperatures on one day will not always exactly match the highest or lowest temperatures on the next day. Normal human body temperature varies slightly from person to person and ...
Influenza C virus, like influenza B virus, is primarily found in humans, though it has been detected in pigs, feral dogs, dromedary camels, cattle, and dogs. [ 12 ] [ 23 ] Influenza C virus infection primarily affects children and is usually asymptomatic [ 1 ] [ 11 ] or has mild cold-like symptoms, though more severe symptoms such as ...
The very young, old, and people with a weakened immune system may not have any symptoms that are specific to their infection, and their body temperature may be low or normal instead of constituting a fever. [2] Severe sepsis causes poor organ function or blood flow. [9]
The 2009 swine flu pandemic, caused by the H1N1/swine flu/influenza virus and declared by the World Health Organization (WHO) from June 2009 to August 2010, was the third recent flu pandemic involving the H1N1 virus (the first being the 1918–1920 Spanish flu pandemic and the second being the 1977 Russian flu).
[166] [154] Humans' thinner body hair and more productive sweat glands help avoid heat exhaustion while running for long distances. [167] Compared to other apes, the human heart produces greater stroke volume and cardiac output and the aorta is proportionately larger. [168] [169]
Immunodeficiency occurs when the immune system is less active than normal, resulting in recurring and life-threatening infections. In humans, immunodeficiency can be the result of a genetic disease such as severe combined immunodeficiency, acquired conditions such as HIV/AIDS, or the use of immunosuppressive medication.
In a 2008 study by Boost, O'Donoghue, and James, it was found that just about 90% of S. aureus colonized within pet dogs presented as resistant to at least one antibiotic. The nasal region has been implicated as the most important site of transfer between dogs and humans. [55] Staphylococcus aureus is one of the causal agents of mastitis in ...
Outside the human body, the virus is destroyed by household soap which bursts its protective bubble. [104] Hospital disinfectants, alcohols, heat, povidone-iodine, and ultraviolet-C (UV-C) irradiation are also effective disinfection methods for surfaces. [105] SARS-CoV-2 is closely related to the original SARS-CoV. [106]