These are one-celled microscopic organism that rank among the widest spread of living things.

These are small simple life like forms from one half to 100 the size of the bacteria.

Which of the following virus enter the respiratory system and cause sickness.

These organisms live in the human mouth, intestines, skin, and help protect us from harmful bacteria

It is a communicable disease which most often affects the lungs.

Once the chickenpox rash appears, it goes through three phases, what do you call the first phase?

The rash caused by chickenpox appears 10 to 21 days after you're exposed to the varicella- zoster virus. How many days does the rash often lasts?

It is a communicable viral infection caused by a new strain of severe acute respiratory syndrome coronavirus.

is an illness caused by the varicella-zoster virus. It brings on an itchy rash with small, fluid-filled blisters.

These are illnesses that spread from one person to another or from an animal to a person, or from a surface or a food.

It is the second stage of infection which starts from the onset non-specific signs and symptoms such as fever.

Which of the following are the activities to avoid communicable diseases?

It refers to an illness caused by the varicella-zoster virus that brings on an itchy rash with small, fluid-filled blisters.

Strategies to reduce infections are designed to protect which of the following is NOT?