Questions about example sentences with, and the definition and usage of "Infect"

A: You could get an infection from swimming in the sewer water.
(Infection = noun)
Mosquitos infect many people with malaria.
(infect = verb)

A: Infect is to spread something such as disease to others. For example: I don't want to infect my classmates with my cold.

Affect is similar to impact where you are spreading something but it is more likely feelings or moods rather than a sickness. Example: I don't want my friends to be affected by my sad mood.

A: Infect is used for infections.
Example: Malaria could infect people from 10 meters away
Affect means to influence or have an impact on something

A: Infect: the action of giving some thing a disease or illness
Contract: is the action of receiving or getting a disease or illness.

Ex)
After work, the doctor washed his hands so he did not infect anyone else.

The girl had contracted an illness from her sick friend.

A: No, the T does not become a ‘tr’ sound. The two words can be linked, but it really depends on the speaker. If the speaker chooses to link them, it will sound more like “infeckchew”.

The first pronunciation is me not linking these words. The second is me linking them. The unlinked version sounds and feels more natural to me.

A: People with a virus can infect people without the virus.

A: infect, in fact.

A: "I'm afraid I'll get you sick."

A: -I might infect you with my cold

-I might give you my cold