IL6 and parasitic infectious disease: Frequency of serum samples with detectable levels of TNF-α, IL-17, IL-5, IL-13, IL-33, and IL-10, or with high levels of IL-6, IL-27, CCL3, CCL5, CXCL10, CCL11, and CCL17 from individuals with different parasitic infection profiles living in the rural community of Brejo do Amparo, Januária, Minas Gerais, Brazil.