We invited about a dozen people to our wedding a few weeks before — via text. The move is not recommended by wedding etiquette experts, but I don't regret it. After a year postponement, our "B-listers" understood not being on the original A list.

Naive, long-lived B cells in rodents and humans are heterogeneous in phenotype, topography and functions. Follicular recirculating B cells populate follicles in the spleen and lymph nodes; static marginal-zone (MZ) B cells are enriched in the MZ of the ...