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Deprecated: Implicit conversion from float 267.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Emerg+Microbes+Infect 2021 ; 10 (1): 874-884 Nephropedia Template TP
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A novel linker-immunodominant site (LIS) vaccine targeting the SARS-CoV-2 spike protein protects against severe COVID-19 in Syrian hamsters #MMPMID33890550
Zhang BZ; Wang X; Yuan S; Li W; Dou Y; Poon VK; Chan CC; Cai JP; Chik KK; Tang K; Chan CC; Hu YF; Hu JC; Badea SR; Gong HR; Lin X; Chu H; Li X; To KK; Liu L; Chen Z; Hung IF; Yuen KY; Chan JF; Huang JD
Emerg Microbes Infect 2021[Dec]; 10 (1): 874-884 PMID33890550show ga
The Coronavirus Disease 2019 (COVID-19) pandemic is unlikely to abate until sufficient herd immunity is built up by either natural infection or vaccination. We previously identified ten linear immunodominant sites on the SARS-CoV-2 spike protein of which four are located within the RBD. Therefore, we designed two linkerimmunodominant site (LIS) vaccine candidates which are composed of four immunodominant sites within the RBD (RBD-ID) or all the 10 immunodominant sites within the whole spike (S-ID). They were administered by subcutaneous injection and were tested for immunogenicity and in vivo protective efficacy in a hamster model for COVID-19. We showed that the S-ID vaccine induced significantly better neutralizing antibody response than RBD-ID and alum control. As expected, hamsters vaccinated by S-ID had significantly less body weight loss, lung viral load, and histopathological changes of pneumonia. The S-ID has the potential to be an effective vaccine for protection against COVID-19.