Hashimoto's disease is a/an...

What is the full form of $WHO$?

$A$ substance that causes the disintegration or lysis of bacteria is known as:

The virus causing conjunctivitis spreads from one person to another through the air. Therefore,conjunctivitis is a:

Consider the following statements:
$I.$ People should get vaccinated to avoid infection.
$II.$ Vaccination is available against polio,cholera,typhoid,tuberculosis,and many other diseases.
$III.$ Eradication of vectors is necessary for diseases like malaria and filariasis.
$IV.$ Dengue and chikungunya are both spread by $Culex$ mosquitoes.
Which of the statements given above are correct?

Identify the odd one out from the following options.