Transmission of pathogens especially the infectious ones can occur in all of the above. First is through people and animals, also through contaminated objects and lastly the environment. Hope this is the correct answer and this would be of big help.
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<h3>A person with measles encephalitis may become comatose, and death or brain injury may occur. For people having had measles, it is rare to ever have a symptomatic reinfection. The measles virus can kill cells that make antibodies, and thus weakens the immune system which can cause deaths from other diseases.</h3>
