This document discusses stages of infection and disease prevention and control. It covers four stages of infection: entry, multiplication, spread, and recovery. It also discusses the chain of infection and how microorganisms can enter the body through the respiratory system, gastrointestinal system, reproductive tracts, or breaks in the skin. The document provides activities for students to complete to review the stages of infection.

1. HEALTH 8 3RD
QUARTER:
Prepared by Mrs. Princess L. Simbiling, LPT

2. Module 1: Stages of Infection
HEALTH 8 3RD QUARTER: DISEASE PREVENTION AND CONTROL (COMMUNICABLE)
Prepared by Mrs. Princess L. Simbiling, LPT

3. TRUE OR FALSE
You cannot be infected again with chicken pox
if you have been infected already before.

4. TRUE OR FALSE
The diseases or infection is still communicable
in the recovery stage.

5. TRUE OR FALSE
Communicable Diseases are diseases that do
not transfer from one person to another.

6. WHAT IS INFECTION?
An invasion of microorganisms into the body that can
produce a disease.

7. FOUR STAGES OF INFECTION

8. CHAIN OF INFECTION

9. They may enter through:
Respiratory System (inhalation)
Gastrointestinal System
(ingestion)

10. They may enter through:
Reproductive Tracts
(sexual contact)
Breaks in the skin
(open wound)

12. ACTIVITY TIME!
Answer the following activities on your LMS (Aralinks):
• REVIEW – Activity 2: Step by Step
• RATE YOUR UNDERSTANDING – Activity 3: Quick Think & Activity
4: Mortality Combat
Please be reminded with the given time limit and deadline. Good
luck!

13. Thank you!
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Department of Education (2014). Health Grade 9 Teacher’s Guide. Retrieved from
https://www.depednegor.net/uploads/8/3/5/2/8352879/health_9_tg_draft_3.24.2014.pdf
Department of Education (2020). K to 12 Most Essential Learning Competencies with Corresponding CG Codes. Retrieved from
https://drive.google.com/drive/folders/1YF1bKWU4GniVfit-
55KUcsPC5vhIjaCV?fbclid=IwAR1CSrs1DPjtyMweyyNWBol4h8nIsygusXbvn1PUsrxeDTwXmQ8i8Bfm1xQ
Department of Health (n.d.) What are the leading causes of mortality in the Philippines? Retrieved from https://doh.gov.ph/node/1058
Markiewicz, D. (2019). Communicable & infectious diseases on the rise in the U.S. Retrieved from https://www.ishn.com/ext/resources/Issues/2019/06-
June/ISHN0619_C2_pic.jpg?1559575718
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Sanchez, M. (2020). Leading causes of mortality Philippines 2017 by disease. Retrieved from https://www.statista.com/statistics/1120528/philippines-
leading-causes-mortality-by-disease/#:~:text=In%202017%2C%20one%20of%20the,and%20chronic%20lower%20respiratory%20infection.