We describe a case of proven transmission of SARS‐CoV‐2 from lung donor to recipient. The donor had no clinical history or findings suggestive of infection with SARS‐CoV‐2 and tested negative by reverse transcriptase polymerase chain reaction (RT‐PCR) on a nasopharyngeal (NP) swab obtained within 48 h of procurement. Lower respiratory tract testing was not performed. The recipient developed fever, hypotension, and pulmonary infiltrates on posttransplant day (PTD) 3, and RT‐PCR testing for SARS‐CoV‐2 on an NP swab specimen was non‐reactive, but positive on bronchoalveolar lavage (BAL) fluid. One thoracic surgeon present during the transplantation procedure developed COVID‐19. Sequence analysis of isolates from donor BAL fluid (obtained at procurement), the recipient, and the infected thoracic surgeon proved donor origin of recipient and health‐care worker (HCW) infection. No other organs were procured from this donor. Transplant centers and organ procurement organizations should perform SARS‐CoV‐2 testing of lower respiratory tract specimens from potential lung donors, and consider enhanced personal protective equipment for HCWs involved in lung procurement and transplantation.

Background: Contemporary emergency department (ED) standard-of-care treatment of hyperkalemia is poorly described. Objective: Our aim was to determine the treatment patterns of hyperkalemia management in the ED.

The smokybrown cockroach, Periplaneta fuliginosa (Serville), has become an increasingly important peridomestic pest throughout much of the southeastern United States, Japan, and southeast Asia. We provide a brief description of the species and clarify its worldwide distribution. Aspects of smokybrown cockroach behavior, biology, ecology, and physiology are discussed in the context of this species' successful exploitation of the urban environment. We describe smokybrown cockroach management based upon a model that relates house and landscape characteristics to cockroach population size. Finally, we illustrate the effectiveness of a model-based IPM system that increases control while reducing use of insecticides.

These observations indicate that the microinjection technique yields values for tissue PO(2) that are in good agreement with previously published results using oxygen microelectrodes.

Dispersal studies of musk thistle (Carduus nutansL =C. thoermeriWeinmann) seeds by wind were performed to determine the percentage of seeds removed from the vicinity of the plant where the seeds originated. For the different wind velocities tested (up to 5.6 m/s) less than 1% of the seeds were blown further than 100 m. Most seeds were deposited within 50 m of the point of release. A Gaussian model of seed dispersal based on experimentally determined parameters and published data adequately described these results.