Retrospective simulation of global COVID19 distribution scenarios shows that equitable and altruistic vaccine sharing strategies could have substantially reduced the global burden of SARSCoV2 infections and mortality. MattJKeeling warwickuni
and the risk of waning efficacy, vaccine sharing remains important: our model suggests that even late vaccine sharing, once wealthy countries had delivered all second doses, would have seen sizeable benefits in late 2021 and into 2022.
We estimate that increased vaccine sharing would have provided large benefits in low-income and lower-middle-income countries; this benefit comes at a cost to some high-income countries where increased or prolonged use of NPI measures would have been required to suppress disease in the short term. This substantial reduction in disease burden could have reduced the unmanageable waves of disease experienced by many of the poorest countries that are least well equipped to manage the pandemic.
This study is subject to several limitations. First, we concentrated on supply constraints. Assuming that a fixed amount of vaccine was available throughout 2021, the key issue addressed is where this should have been deployed. Supply has historically been a major factor causing heterogeneity in worldwide coverage—when vaccines first became available, the limited quantities produced were purchased primarily by wealthier nations.
In this analysis, we also assumed that vaccine efficacy profiles used are uniform across nations; however, many lower-income countries rely on substantially less effective vaccines than the more desirable counterparts employed by high-income countries. During the course of simulation, we tested sensitivity to vaccine efficacy, and, as expected, if redistributed vaccines were of lower or higher efficacy, the benefits of sharing would be reduced or increased, respectively.
With numerous different vaccines now being produced and the success of the COVAX scheme increasing vaccine availability
Argentina Últimas Noticias, Argentina Titulares
Similar News:También puedes leer noticias similares a ésta que hemos recopilado de otras fuentes de noticias.
China Covid: Millions back in lockdown as Beijing doubles down on zero-CovidDozens of cities across the country have been affected by varying degrees of restrictions.
Leer más »
Scotland Covid inquiry: Lord Brailsford appointed new chairLord Brailsford will take charge of Scotland's Covid-19 inquiry after the resignation of Lady Poole.
Leer más »
COVID-19 Surges Linked To Spike in Heart Attack Deaths – “Like Nothing Seen Before”New study shows heart attack increase has been most prominent in young adults, especially those ages 25-44. Researchers at the Smidt Heart Institute at Cedars-Sinai conducted a new data analysis and found that deaths from heart attacks rose significantly during pandemic surges, including the COVI
Leer más »
Covid Hospitalizations Climb Again As Another U.S. Wave Looms Large—These States Lead The WayCovid hospitalizations have started to rise across the U.S. for the first time in weeks, according to data from the Centers for Disease Control and Prevention.
Leer más »