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Influenza in pigs is a respiratory disease similar to influenza in humans and is found worldwide. Asymptomatic infections are common. Symptoms typically appear 1–3 days after infection and include fever, lethargy, anorexia, weight loss, labored breathing, coughing, sneezing, and nasal discharge. In sows, pregnancy may be aborted.
Flu A circulates in humans and animals, while flu B is primarily considered a human disease, according to Dr. Russo. Flu A viruses are divided into subtypes based on two proteins on the surface of ...
But on an individual level, influenza B infections have the potential to become just as severe. When it comes to type A versus type B flu, the timing isn't always predictable, Liu says.
The following outline is provided as an overview of and topical guide to concepts related to infectious diseases in humans.. Infection – transmission, entry/invasion after evading/overcoming defense, establishment, and replication of disease-causing microscopic organisms (pathogens) inside a host organism, and the reaction of host tissues to them and to the toxins they produce.
Influenza viruses A and B are estimated to have diverged from a single ancestor around 4,000 years ago, while the ancestor of influenza viruses A and B and the ancestor of influenza virus C are estimated to have diverged from a common ancestor around 8,000 years ago. [40] Outbreaks of influenza-like disease can be found throughout recorded history.
The 24-hour flu is usually a type of gastroenteritis, which is an inflammation of the intestines and stomach, says William Schaffner, M.D., an infectious disease specialist and professor at the ...
multiple bacteria Bacterial meningitis: Lumbar puncture (contraindicated if there is a mass in the brain or the intracranial pressure is elevated), CT or MRI Antibiotics No multiple bacteria Bacterial pneumonia: Sputum Gram stain and culture, Chest radiography Antibiotics No List of bacterial vaginosis microbiota: Bacterial vaginosis
Allen Cheng, director of infectious diseases at Monash Health, writes that influenza isn’t as infectious as other respiratory infections, but its short incubation period means outbreaks can ...