Problems with sharing influenza samples climaxed in 2007 but then bega — Influenza

"Many international health agencies and research laboratories collaborate to track influenza virus evolution, evaluate antigenic drift among circulating and vaccine strains, and sequence viral genes to advance surveillance and preparedness. The production of improved vaccines and diagnostic tools, and better access to therapeutic agents represent resources that were not available a century ago. But influenza viruses are moving targets, and a pandemic virus could nevertheless emerge with as little warning in 2018 as in 1918. As evidenced by this current flu season, influenza viruses can rapidly acquire mutations that evade our most recent vaccine formulations. A universal, broadly protective influenza vaccine for seasonal epidemics—a goal of intense research efforts—would improve our preparedness for subsequent pandemics."

"Physical activity may lower rates of infection for other types of viral and bacterial diseases, but more data are needed. Several epidemiologic studies suggest that regular physical activity is associated with decreased mortality and incidence rates for influenza and pneumonia. These findings are in accordance with rodent-based studies demonstrating a positive link between chronic exercise and improved host responses to influenza and pneumonia infection. These data must be carefully balanced with published reports of increased infectious disease severity when vigorous exercise was engaged in during active influenza or other viral infections. There is also increasing support for improved antibody responses to influenza immunization in elderly adults who engage in regular exercise training regimens."

"Sambucus nigra L. products - Sambucol - are based on a standardized black elderberry extract. They are natural remedies with antiviral properties, especially against different strains of influenza virus. Sambucol was shown to be effective in vitro against 10 strains of influenza virus. In a double-blind, placebo-controlled, randomized study, Sambucol reduced the duration of flu symptoms to 3-4 days. Convalescent phase serum showed a higher antibody level to influenza virus in the Sambucol group, than in the control group."

"Planning and preparedness efforts are widespread and ongoing, on a scale likely not imagined in 1918. Pandemic plans have been developed by a variety of stakeholders, including nations, states, counties, cities, and businesses. WHO has published essential steps for developing a national pandemic plan, as well as a checklist for pandemic influenza risk and impact management . In the United States, the Department of Health and Human Services published an updated 2017 Pandemic Influenza Plan that highlighted successes since the 2005 Pandemic Influenza Plan and emphasized needed improvements . However, the majority of countries reported by WHO still have no, or no publically available, national plan for pandemic preparedness and risk management."

"Three worldwide (pandemic) outbreaks of influenza occurred in the 20th century: in 1918, 1957, and 1968. The latter 2 were in the era of modern virology and most thoroughly characterized. All 3 have been informally identified by their presumed sites of origin as Spanish, Asian, and Hong Kong influenza, respectively. They are now known to represent 3 different antigenic subtypes of influenza A virus: H1N1, H2N2, and H3N2, respectively. Not classified as true pandemics are 3 notable epidemics: a pseudopandemic in 1947 with low death rates, an epidemic in 1977 that was a pandemic in children, and an abortive epidemic of swine influenza in 1976 that was feared to have pandemic potential. Major influenza epidemics show no predictable periodicity or pattern, and all differ from one another. Evidence suggests that true pandemics with changes in hemagglutinin subtypes arise from genetic reassortment with animal influenza A viruses."

"We are no doubt more prepared in 2018 for an infectious disease threat than in 1918. But it is critical to remember that preparation only stems from a global commitment to share data about viral isolates, support innovative research, and dedicate resources to assess the pandemic risk of new and emerging influenza viruses from zoonotic reservoirs."