When is the immune response most intense?

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(B) The immune response is most intense during the secondary immune response. When the body encounters a pathogen for the first time,it generates a pr

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When our body comes into contact with the same pathogen for the second time.

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(B) The immune response is most intense during the secondary immune response. When the body encounters a pathogen for the first time,it generates a primary immune response,which is of low intensity. However,when the same pathogen enters the body for the second time,the memory cells ($B$-cells and $T$-cells) recognize it immediately and mount a highly intensified secondary or anamnestic response. This is the principle behind vaccination.

Column-$I$	Column-$II$
$A$. Physiological barrier	$1$. Skin
$B$. Cellular barrier	$2$. Macrophages
$C$. Physical barriers	$3$. Interferons
$D$. Cytokine barriers	$4$. Tears
	$5$. Mucus

Column-$I$	Column-$II$
$(a)$ Physical barrier	$(1)$ Skin
$(b)$ Physiological barrier	$(2)$ Interferon protein
$(c)$ Cellular barrier	$(3)$ Leucocytes
$(d)$ Cytokine barrier	$(4)$ Saliva in the mouth

Similar Questions

Select the correct pair:

Column-$I$ Column-$II$

$A$. Physiological barrier $1$. Skin

$B$. Cellular barrier $2$. Macrophages

$C$. Physical barriers $3$. Interferons

$D$. Cytokine barriers $4$. Tears

$5$. Mucus

Identify the receptors present on $T_{H}$ cells and $T_{C}$ cells,respectively.

Match the columns:

Column-$I$ Column-$II$

$(a)$ Physical barrier $(1)$ Skin

$(b)$ Physiological barrier $(2)$ Interferon protein

$(c)$ Cellular barrier $(3)$ Leucocytes

$(d)$ Cytokine barrier $(4)$ Saliva in the mouth

Which of the following are autoimmune disorders?
$A$. Myasthenia gravis
$B$. Rheumatoid arthritis
$C$. Gout
$D$. Muscular dystrophy
$E$. Systemic Lupus Erythematosus $(SLE)$
Choose the most appropriate answer from the options given below:

Why does immunity in old people decrease?

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