Don't worry about SARS-CoV-2/Covid-19 anymore! Better vaccines are being developed! This article seems to describe a broad spectrum vaccine!
"A new type of vaccine provides protection against a variety of SARS-like betacoronaviruses, including SARS-CoV-2 variants, in mice and monkeys ...
Betacoronaviruses, including those that caused the SARS, MERS, and COVID-19 pandemics, are a subset of coronaviruses that infect humans and animals. The vaccine works by presenting the immune system with pieces of the spike proteins from SARS-CoV-2 and seven other SARS-like betacoronaviruses, attached to a protein nanoparticle structure, to induce the production of a broad spectrum of cross-reactive antibodies. Notably, when vaccinated with this so-called mosaic nanoparticle, animal models were protected from an additional coronavirus, SARS-CoV, that was not one of the eight represented on the nanoparticle vaccine. ..."
Betacoronaviruses, including those that caused the SARS, MERS, and COVID-19 pandemics, are a subset of coronaviruses that infect humans and animals. The vaccine works by presenting the immune system with pieces of the spike proteins from SARS-CoV-2 and seven other SARS-like betacoronaviruses, attached to a protein nanoparticle structure, to induce the production of a broad spectrum of cross-reactive antibodies. Notably, when vaccinated with this so-called mosaic nanoparticle, animal models were protected from an additional coronavirus, SARS-CoV, that was not one of the eight represented on the nanoparticle vaccine. ..."
From the abstract:
"Protection against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and SARS-related emergent zoonotic coronaviruses is urgently needed. We made homotypic nanoparticles displaying the receptor binding domain (RBD) of SARS-CoV-2 or co-displaying SARS-CoV-2 RBD along with RBDs from animal betacoronaviruses that represent threats to humans (mosaic nanoparticles with four to eight distinct RBDs). Mice immunized with RBD nanoparticles, but not soluble antigen, elicited cross-reactive binding and neutralization responses. Mosaic RBD nanoparticles elicited antibodies with superior cross-reactive recognition of heterologous RBDs relative to sera from immunizations with homotypic SARS-CoV-2–RBD nanoparticles or COVID-19 convalescent human plasmas. Moreover, after priming, sera from mosaic RBD–immunized mice neutralized heterologous pseudotyped coronaviruses as well as or better than sera from homotypic SARS-CoV-2–RBD nanoparticle immunizations, demonstrating no loss of immunogenicity against particular RBDs resulting from co-display. A single immunization with mosaic RBD nanoparticles provides a potential strategy to simultaneously protect against SARS-CoV-2 and emerging zoonotic coronaviruses."
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