id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-274816-6xpma224	Onal, Merih	Can secondary lymphoid organs exert a favorable effect on the mild course of COVID-19 in children?	2020-10-27		.txt	text/plain	1426	76	43	Palatine and pharyngeal tonsils are important organs of the immune system, and they protect the body from pathogens invading the upper respiratory tract, especially in young children [8] . In a study on patients with hypertrophic adenoid tissue, recurrent upper and lower respiratory tract infections were demonstrated along with high serum myeloperoxidase levels (indicating neutrophil activation), increased serum eosinophilic cationic protein levels (indicating eosinophil activation) and high CD 163 glycoprotein levels (indicating monocyte/macrophage activation) [15] . It is known that human tonsils are immunologically reactive lymphoid organs carrying out humoral and cellular immunity functions as a response to various antigens and displaying B and T cell activity [16] . In the same study, although a difference was expected in tonsillar hypertrophy and recurrent tonsillitis groups in terms of the levels of interferons (IFN-a, IFN-b, IFN-c, IL-28, IL-29) , which are cytokines with antiviral activity and whose expression is induced by viral infection, not detected.	./cache/cord-274816-6xpma224.txt	./txt/cord-274816-6xpma224.txt