Since January 2020, Elsevier has established a COVID-19 resource center on its public news and information website, Elsevier Connect, providing free information in English and Mandarin about the novel coronavirus. The company has granted permission to make all its COVID-19-related research available in PubMed Central and other public repositories, allowing unrestricted reuse and analysis with acknowledgment of the original source. A study by Ni et al. (2020) investigated SARS-CoV-2-specific humoral and cellular immunity in COVID-19 convalescent individuals. The study found that most convalescent subjects had detectable neutralizing antibodies and virus-specific T cells. Neutralization antibody titers correlated significantly with the numbers of virus-specific T cells, suggesting that both humoral and cellular immune responses are important for protective immunity against SARS-CoV-2. This research provides insights into the pathogenesis of COVID-19 and has implications for vaccine development.Since January 2020, Elsevier has established a COVID-19 resource center on its public news and information website, Elsevier Connect, providing free information in English and Mandarin about the novel coronavirus. The company has granted permission to make all its COVID-19-related research available in PubMed Central and other public repositories, allowing unrestricted reuse and analysis with acknowledgment of the original source. A study by Ni et al. (2020) investigated SARS-CoV-2-specific humoral and cellular immunity in COVID-19 convalescent individuals. The study found that most convalescent subjects had detectable neutralizing antibodies and virus-specific T cells. Neutralization antibody titers correlated significantly with the numbers of virus-specific T cells, suggesting that both humoral and cellular immune responses are important for protective immunity against SARS-CoV-2. This research provides insights into the pathogenesis of COVID-19 and has implications for vaccine development.