Direct transmission of disease does not include which of the following?
Transmission by blood
Diseases like hepatitis B and malaria are transmitted by blood through contaminated needles and mosquitoes. Therefore, they are examples of 'indirect transmission'.
'Direct contact' involves transmission by actual contact with an infected person. Examples of diseases spread through direct contact are leprosy and conjunctivitis.
'Droplet infection' is through droplets of saliva during coughing, sneezing, speaking or spitting. Examples include diphtheria, tuberculosis and the common cold.
'Contact with soil' can result in diseases like tetanus or mycosis.
'Entry through the skin' is when microorganisms enter through cuts or wounds. Example: rabies virus which is introduced by a dog bite.