id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-343349-ftzjdvfj	Bhatt, P. N.	Experimental infection of adult axenic rats with Parker's Rat Coronavirus	1977		.txt	text/plain	2128	131	51	Virus was recovered from the nasopharynx and trachea after twenty-four hours and from the lung by day three but was not detected in respiratory tract after seven days. Viral antigen was detected by indirect immunofluorescence in the mucosal epithelium of upper respiratory tract and in pulmonary alveolar septae from day two to six postinoculation. Dacryoadenitis did not occur, sialoadenitis was detected in only three rats and virus was recovered from only one submaxillary salivary gland. Coronavirus infection is common in laboratory rats and two antigenically related viruses, sialodacryoadenitis virus (SDAV) and Parker's rat coronavirus (PRCV), have been isolated from naturally-infected rats (2, 7) . Virus in lungs, tracheas, nasal washings, salivary glands and lacrimal glands was quantitated for individual rats. Virus was not detected in nasopharynx, trachea and lung a~ter day six and in other tissues after day seven except in ~he submaxillary salivary gland of one rat.	./cache/cord-343349-ftzjdvfj.txt	./txt/cord-343349-ftzjdvfj.txt