id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-258107-s53f25sb	Wattrang, Eva	Exudative epidermitis and porcine circovirus-2 infection in a Swedish SPF-herd	2002-05-24		.txt	text/plain	4806	270	62	In addition, 3-week-old piglets from three litters (n=24) farrowed close after the initial EE outbreak were closely monitored for clinical signs of skin disease, sampled for Staphylococcus hyicus, tested for antibodies to porcine parvovirus and in sequentially collected serum samples tested for interferon-α (IFN-α) and interleukin-6. All tested serum samples from the SPF-herd collected in 1990, 1992 and February 1993, i.e., up to 2 months prior to the EE outbreak, were negative for antibodies to PCV-2 both in ELISA n 22 and IIF (n 10, February 1993 samples). Thus, after being sero-negative to PCV-2 earlier in 1993, pigs in the SPF-herd had varying levels of antibodies to this virus 2 weeks after the ®rst outbreak of EE. Piglets in litter 3 were also sero-positive to PCV-2 at 3 days of age but had lower levels of antibodies compared to the offspring of sow no.	./cache/cord-258107-s53f25sb.txt	./txt/cord-258107-s53f25sb.txt