Final answer:
Infections are spread through various means including the germ, the host, the vehicles of transmission, and the new host.
Explanation:
Infections are spread through various means including the germ, the host (person who is ill), the vehicles of transmission, and the new host (next person who becomes ill). Transmission can occur directly through physical contact or indirectly through fomites. Pathogens can be picked up from reservoirs and spread to new hosts via different modes of transmission.
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