flu(an infectious disease like a very bad cold, that causes fever, pains and weakness: The whole family has the flu. (British English) She's got flu. She was off work for four days because of a bout with the flu. She's had a nasty dose of flu. OALD Alexander Demidov)
reproductive and respiratory syndrome(РРС, RRS. Porcine reproductive and respiratory syndrome virus is a virus that causes a disease of pigs, called porcine reproductive and respiratory syndrome, also known as blue-ear pig disease. Wikipedia Alexander Demidov)
