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In daycare centres, the close contact of children with other children and employees favours the transmission of infections. The majority of children <6 years attend daycare programmes in Germany, but the role of daycare centres in the SARS-CoV-2 pandemic is unclear. We investigated the transmission risk in daycare centres and the spread of SARS-CoV-2 to associated households. 30 daycare groups with at least one recent laboratory-confirmed SARS-CoV-2 case were enrolled in the study (10/2020–06/2021). Close contact persons within daycare and households were examined over a 12-day period (repeated SARS-CoV-2 PCR tests, genetic sequencing of viruses, symptom diary). Households were interviewed to gain comprehensive information on each outbreak. We determined primary cases for all daycare groups. The number of secondary cases varied considerably between daycare groups. The pooled secondary attack rate (SAR) across all 30 daycare centres was 9.6%. The SAR tended to be higher when the Alpha variant was detected (15.9% vs. 5.1% with evidence of wild type). The household SAR was 53.3%. Exposed daycare children were less likely to get infected with SARS-CoV-2 than employees (7.7% vs. 15.5%). Containment measures in daycare programmes are critical to reduce SARS-CoV-2 transmission, especially to avoid spread to associated households.
In 2007 the translation into English of the first two books of Evliya Çelebi's (EÇ) Seyahatnâme by the celebrated Austrian diplomat and orientalist Joseph von Hammer-Purgstall was republished in the Royal Asiatic Society (RAS) series Classics of Islam. Hammer's translation was based on what is now ms. RAS 22 in the RAS Library, and was first published under the auspices of the Oriental Translation Fund (OTF) in three parts: in 1834 (as Vol. I/i), 1846 (Vol. I/ii) and 1850 (Vol. II). It includes EÇ's account of his home city of Istanbul (Vol. I) and his first trip away – to Bursa in 1640 – as well as subsequent travels during the 1640s, including to Crimea, the Caucasus and northern Anatolia (Vol. II). The Committee of the OTF agreed to buy the manuscript and its continuation, now ms. RAS 23, from Hammer in 1832.