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).
What is a Tax Identification Number / TIN? A tax or taxpayer identification number, also known as a TIN for short, is a number issued to individuals and organizations to track tax obligations and payments they make to the Internal Revenue Service (IRS). It is issued by the federal government.