The common cold spreads in the human body by the replication of the causative virus.
Further Explanation:
Infectious diseases can be passed from one being to another being by direct or indirect contact. Infectious disease can be transmitted through two methods:
Direct contact: The types of indirect contact are droplet spread and person to person contact.
Indirect contact: The example of indirect contact is vector contact.
The widespread cold is a very common type of disease that will affect mainly humans. Cold is a very frequent diagnosis, both in primary care and in emergency services; although, its real frequency is masked by the usual use of synonyms (rhinoadenoiditis, rhinopharyngitis, high-altitude cold, upper respiratory infection) that disperse the diagnosis and may lead to the belief that these are different diseases.
The causative agent of cold is a virus. When the virus enters into the human, then it incorporates itself into the host machinery to replicate and multiply. Through this pathway, it spread inside the human body.
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Answer Details:
Grade: High School
Subject: Biology
Chapter: Human health and disease
Keywords:
Virus, cold, spread, human body, infection, multiply, replicate, common, widespread, disease, primary, synonyms, person, direct contact, indirect contact.