Relative deficiency in interferon-γ-secreting CD4+ T cells is strongly associated with poorer COVID-19 vaccination responses in older adults by Ho, Vanda W. T., Boon, Low Heng, Cui, Jianzhou, Juequn, Zhou, Shunmuganathan, Bhuvaneshwari, Gupta, Rashi, Tan, Nikki Y. J., Qian, Xinlei, Purushotorman, Kiren, Fong, Siew-Wai, Renia, Laurent, Ng, Lisa F. P., Angeli, Veronique, Chen, Jinmiao, Kennedy, Brian K., Ong, Catherine W. M., Macary, Paul A.

“…Antigen-specific T-cell responses were also quantified by intracellular cytokine staining and flow cytometry. Older adults had attenuated T-helper (Th) response to vaccination, which was associated with weaker antibody responses and decreased SARS-CoV-2 neutralisation. …”
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Spatial and temporal localization of cell wall associated pili in Enterococcus Faecalis by Choo, Pei Yi

“…We followed the distribution of Ebp and peptidoglycan (PG) at different growth stages of E. faecalis via immunofluorescence, along with fluorescent D-amino acids (FDAA) staining. Surprisingly, cell surface Ebp did not co-localize with newly synthesized PG. …”
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