{'fraction_non_alphanumeric': 0.032504780114722756, 'fraction_numerical': 0.019120458891013385, 'mean_word_length': 5.093023255813954, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
In this issue

The cover image depicts immunofluorescence histology of OT‐II cells within the popliteal draining lymph nodes. The image was taken from the article by Serre et al. (pp.1573–1586), in which the authors assess the complexity of Th2 responses in vivo. The authors show that early central‐memory‐like cells induced by immunization re‐enter the cell cycle and migrate to B‐cell follicles, where the induction and survival of memory cells are independent of the starting frequency of antigen‐specific CD4+ T cells.