Ключевые слова: alert, alphabet, app, background, banner, block, business, communication, concept, cube, design, disruption, health, isolated, letter, message, nhs app, note, notification, notify, pandemic, ping, pingdemic, play on words, red, self isolate, sign, staff shortages, symbol, test, text, trace, track, track and trace, typography, wood, wooden, word, wordplay,