Influenza (flu) is an upper respiratory infection. Learn about symptoms of the flu vs. cold vs. COVID-19, treatment options, and how the flu shot can provide protection from infection.
Influenza A and B viruses cause seasonal epidemics of disease almost every winter in the United States, while influenza C causes only mild respiratory symptoms and is not thought to cause epidemics, according to the CDC. A fourth type of influenza, type D, is not known to cause illness in ...
Colds and the flu are among the most common reasons people miss work or school. While they can be very similar, there are important differences in symptoms and treatment.
Typically,influenza (flu)is worse with symptoms developing more intensely and abruptly, but not always. Although it can sometimes be difficult (or even impossible) to tell them apart based on symptoms alone, cold and flu have different causes and respond to different treatments. Illustration by Je...
On presentation, vaccinated patients were more likely to present with gastrointestinal symptoms (P<.05). There were no significant differences between study groups in laboratory findings or clinical outcomes. In multivariate analysis, receiving the annual shot did not influence risk of intensive care ...
taste or smell and shortness of breath that may be seen in COVID patients. However, [these] may not be seen in all patients, and, for the most part, the symptoms between COVID and flu are strikingly similar. So, the issue becomes how can the physician distinguish...
Exclusion criteria included underlying severe illnesses, prior antiviral use, or COVID-19 diagnosis. Influenza A accounted for 98.5% of cases, with H3N2 the predominant subtype (59.1%). The primary endpoint was the time to alleviation of influenza symptoms, defined as the time from treatment initi...
(COVID-19). We review in this report the newest findings and data on the origin of pandemic respiratory viral diseases, reservoirs, and transmission modes. We analyzed viral adaption needed for host switch and determinants of pathogenicity, causative factors of pandemic viruses, and symptoms and ...
EpiCorTM postbiotic, derived from yeast fermentate, has been demonstrated to improve immune function in adults, reducing the incidence of cold/flu-like or allergy symptoms. As such, studies are warranted in children as available pharmaceutical options have unwanted side effects. Methods Two-hundred ...
Empty CellInfluenzaCOVID-19 Speed of transmission Shorter incubation period (time from infection to appearance of symptoms) and a shorter serial interval (time between successive cases) 3 days. Interval for the COVID-19 virus is 5–6 days Transmission In the first 3–5 days of illness, or ...