Healthy Homes, Part 4: Disease Vectors and Pests Course

Welcome to InterNACHI's free, online Healthy Homes, Part 4: Disease Vectors and Pests Course. This is part 4 of a 14-part Certified Healthy Homes Inspector certification program. This course is provided by our accredited college at

Take the free online course now.


The goal of this course is to teach students how to understand disease vectors and pests as factors related to household health.


Upon successful completion of this course, the student will be able to understand:

  • describe vectors of diseases
  • list common pests found in unhealthy housing
  • summarize the cons of having rodents present
  • explain the problems associated with termites
  • outline a way to reduce mosquito populations
  • describe features of housing codes
  • perform an inspection related to code issues
  • generate observations related to healthy housing
  • produce written reports related to observations conducted at a house

Course Includes:

  • 31 InterNACHI CE credit hours;
  • 10,410 words;
  • 25 quiz questions in two quizzes; 
  • Inspection and writing assignment; 
  • Research and writing assignment;
  • 20-question final exam; and 
  • Certificate of Completion.  

You will learn the following topics: 

  • Dynamics of Health and Disease
  • Vectors and Pests
  • Rodents
  • Cockroaches
  • Fleas
  • Flies
  • Termites
  • Fire Ants
  • Mosquitoes

Healthy Homes, Part 4: Disease Vectors and Pests Course
Course #4806, Student Catalog 

Student WorkTime CalculationEstimated Clock Hour Time for the Average Student
Attendance for "Seat Time" 1# of minutes of student attendance / 502.1
Participation in Learning Activities 2# of minutes of online student participation / 501.0
Interactivity 3# of minutes of student interactivity / 500.5
Reading the Course Text 4# of words in the course / 100 words per minute / 502.1
Reading the Course Textbook 5# of words in the book / 100 words per minute / 501.1
Academic Engagement 6# of words in the course / 100 / 501.1
Direct Communication 7# of minutes of communication / 500.5
Instructional Video Learning 8# of minutes of video / 500.0
Reinforcement Q & A  9# of questions X 1.85 / 501.0
Writing Assignment of the Inspection  104.0 hours per assignment4.0
Writing Assignment of the Research  114.0 hours per assignment4.0
Academic Activities for an Inspection  128.0 hours for each inspection assignment8.0
Performing an Inspection  138.0 hours for each inspection8.0
Total clock hours
31.0 clock hours
31.0 InterNACHI CE Hours
3.1 CEU


This course has been approved by:

In keeping with InterNACHI's commitment to Continuing Education, this online course is open and free to all members and can be taken repeatedly without limit.

Reminder to members:  InterNACHI's Code of Ethics 1.10 requires that you comply with all government rules and licensing requirements of the jurisdiction where you conduct business.  InterNACHI's courses and Standards generally exceed the Standards of Practice that you are required to abide by locally.