Ques-1: Answer: C. neutrophils Reason: Innate immune system is with first line of defense first come to combat against this infection. Neutrophiols are the host cell fist line defence factors, which act against S. aureus infection (myriad anti -immunity factors). The main immunological inflammatory factors that were involved in his tonsil swelling as follow. The Toll like receptors (TLRs) are signaling receptors, and their activation leading to enhancement of the antimicrobial activity of neutrophils result in the generation of cytokines predominantly by macrophages at the site of infection followed by TLR s activation to present antigen to naïve T cells. This process of macropinocytosis (microbial engulfing) occur through TLRs that induces the dendritic cells maturation finally cell migration. Gram positive organisms live primarily on the surface of your external barriers but if they reach systemic circulation and cause infective endocarditis (eample,Staphylococcus aureus). Sometimes Gram- positive bacteria causes’ disease inside the body, i.e. S. aureus cause septic arthritis inside the body. Increased risk of disease resulted if they became resistant to antibiotics due to release of immunosppressant virulent exotoxins and endotoxins. Solution Ques-1: Answer: C. neutrophils Reason: Innate immune system is with first line of defense first come to combat against this infection. Neutrophiols are the host cell fist line defence factors, which act against S. aureus infection (myriad anti -immunity factors). The main immunological inflammatory factors that were involved in his tonsil swelling as follow. The Toll like receptors (TLRs) are signaling receptors, and their activation leading to enhancement of the antimicrobial activity of neutrophils result in the generation of cytokines predominantly by macrophages at the site of infection followed by TLR s activation to present antigen to naïve T cells. This process of macropinocytosis (microbial engulfing) occur through TLRs that induces the dendritic cells maturation finally cell migration. Gram positive organisms live primarily on the surface of your external barriers but if they reach systemic circulation and cause infective endocarditis (eample,Staphylococcus aureus). Sometimes Gram- positive bacteria causes’ disease inside the body, i.e. S. aureus cause septic arthritis inside the body. Increased risk of disease resulted if they became resistant to antibiotics due to release of immunosppressant virulent exotoxins and endotoxins..