Fig. 1From: Emergence of a virulent porcine reproductive and respiratory syndrome virus (PRRSV) 1 strain in Lower Austria(a + b) Clinical signs in sows (a) and nursery piglets (b). a Affected sows showed cyanosis on ears and tail (green arrows) and gave birth to dead or weak piglets. b Piglets in nursery suffered from various clinical signs including swollen joints, stomach ulcers/gastritis, pericarditis and pneumoniaBack to article page