Antibody dependent infection of human macrophages by severe acute respiratory syndrome coronavirus, Ming Shum Yip, Nancy Hiu, et al. Virol J. 2014; 11: 82. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4018502/ Anti-spike IgG causes severe acute lung injury by skewing macrophage responses during acute SARS0-CoV infection,Li Liu, Qiang Wei, et al. JCI Insight. 2019;4(4) https://insight.jci.org/articles/view/123158
好像乙肝有抗体的仍然会传染给别人
e抗体。但其中只有表面抗体是保护性型抗体,可以抗击体内的病毒,保护人体不得乙肝。核心抗体和e抗体不具有保护性,病毒仍可以在体内繁殖并传染给别人。
要么你打过疫苗。显然这现在不可能。要么你感染过了但是症状轻微或者无症状。理论上抗体可以保护你,但是等病毒变异了就不好说了。
参考
Antibody dependent infection of human macrophages by severe acute respiratory syndrome coronavirus, Ming Shum Yip, Nancy Hiu, et al. Virol J. 2014; 11: 82. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4018502/ Anti-spike IgG causes severe acute lung injury by skewing macrophage responses during acute SARS0-CoV infection,Li Liu, Qiang Wei, et al. JCI Insight. 2019;4(4) https://insight.jci.org/articles/view/123158基本上,
IgM阳性会传染他人。
IgM阴性,IgG阳性则不会传染他人。
至今似乎并没看到研究描述这个现象。若是有的话,疫苗更难做了。
有个好消息是,用猴子做的实验,痊愈后再度给予新冠病毒暴露挑战,猴子都没有再生病,至少短期内具足够的免疫力。