CD4 and infection: Crotoxin Upregulating NLRP-3 Inflammasome and IL-18 and Activating CD4&lt;sup&gt;+&lt;/sup&gt; and CD8&lt;sup&gt;+&lt;/sup&gt; Lymphocytes in Experimental &lt;i&gt;Encephalitozoon cuniculi&lt;/i&gt; Infection.