In the past, black rats were the most commonly infected animals and hungry rat fleas would jump from their recently-dead rat hosts to humans, looking for a blood meal. Pneumonic plague, a particular form of plague infection, is instead transmitted through infected droplets in a sick person's cough.
Tin(IV) oxide is a constituent of the food contact surface that is the subject of FCN 235 (Use of tin antimony oxide [also known as antimony gray cassiterite] as a pigment for all polyolefins for food contact applications).
A triangulated irregular network (TIN) is a representation of a continuous surface consisting entirely of triangular facets. The vertices of these triangles are created from field recorded spot elevations through a variety of means including surveying through conventional, Global Positioning System Real-Time Kinematic (GPS RTK), photogrammetry, or some other means.