Read the following sentences and choose the correct sentences:
$1.$ Dysentery,plague,and diphtheria are caused by bacteria.
$2.$ $Salmonella$ $typhi$ directly affects the respiratory system.
$3.$ Amoebiasis and Ascariasis are caused by contaminated water.
$4.$ Internal bleeding,anemia,and muscular pain are symptoms of elephantiasis.

  • A
    $2$ and $4$
  • B
    $1$ and $3$
  • C
    $3$ and $4$
  • D
    $1$ and $2$

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Similar Questions

Match the following columns correctly.
Column-$I$ Column-$II$ Column-$III$
$(a)$ $Streptococcus$ $pneumoniae$ $(p)$ $3-7$ days $(z)$ Common cold
$(b)$ $Salmonella$ $typhi$ $(q)$ $1-3$ weeks $(x)$ Typhoid
$(c)$ $Rhinovirus$ $(r)$ $1-3$ days $(y)$ Pneumonia

How does the transmission of each of the following diseases take place?
$(a)$ Amoebiasis
$(b)$ Malaria
$(c)$ Ascariasis
$(d)$ Pneumonia

What are the various public health measures,which you would suggest as a safeguard against infectious diseases?

"Prevention is better than cure". Comment.

Read the following statements carefully and determine how many of them are correct.
$(1)$ Acquired immunity is characterized by memory.
$(2)$ The response provided by antibodies is $C.M.I.$
$(3)$ An exaggerated response of the immune system to certain antigens present in the environment is called allergy.
$(4)$ Innate immunity is antibody-dependent.
$(5)$ Dengue is a bacterial disease.

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