Who tracks the spread of infectious contagions?

1. Who tracks the spread of infectious contagions? What’s the name of this scientist?

2. What are the different ways infectious diseases are caused?

3. What are the different ways infectious diseases are caused? • GERMS/CONTAGIONS/PATHOGENIC PARASITES • viruses (smallest microorganism, hijacks its host) • bacteria (smallest LIVING microorganism-prokaryotic) • protozoa(bigger unicellular eukaryotic) • fungi (mostly multicellular eukaryotic) • other larger parasites like worms & flukes, ticks, etc.

4. What do we call an infectious contagion that spreads all over a large region or country?

5. What do we call an infectious contagion that spreads all over a large region or country?

6. What do we call an infectious contagion that spreads all over a large region or country? EPIDEMIC—an infectious pathogen that spreads across a LARGE REGION or COUNTRY

7. What do we call an infectious contagion that spreads all over the EARTH?

8. What do we call an infectious contagion that spreads all over the EARTH?

9. A WORLDWIDE outbreak is a PANDEMIC!

10. A WORLDWIDE outbreak is a PANDEMIC!

11. Like PANGEA was once Earth’s one SUPERCONTINENT

12. A WORLDWIDE outbreak is a PANDEMIC!

13. EPIDEMIC PANDEMIC

14. Outbreaks can turn into EPIDEMICS which can quickly spread into PANDEMICS because of EASY TRANSPORTATION! https://www.youtube.com/watch?v=UG8YbNbdaco

15. Scientists who track the spread of pathogens have a similar name… EPIDEMIC PANDEMIC

16. Scientists who TRACK the SPREAD of a contagion are EPIDEMIOLOGISTS

17. YOUwere acting as an EPIDEMIOLOGIST when you did the Mapping Death activity.

18. YESTERDAY, YOU were acting as an EPIDEMIOLOGIST when you did the Mapping Death activity. https://www.youtube.com/watch?v=4sYSyuuLk5g contagion trailer

19. How do EPIDEMIOLOGISTS classify a spreading disease?

20. How are pathogens spread here? eeeeeeeewwww…

21. How are pathogens spread here? sneezing

22. How are pathogens spread here? sneezing

23. How are contagions SPREAD: sneezing coughing

24. How are contagions SPREAD: • AIR-BORNE-by breathing someone’s germs Weeeee!

25. Do you remember how the deadly cholera bacteria can be spread?

26. Do you remember how the deadly cholera bacteria can be spread?

27. Do you remember how the deadly cholera bacteria can be spread?

28. How are contagions SPREAD: • AIR-BORNE-by breathing someone’s germs • WATER-BORNE-germs in contaminated water http://www.npr.org/sections/health-shots/2017/03/07/518811502/watch-raindrops-catapult-bacteria-into-the-air-and-its-beautiful

30. _______ are NON-HUMAN disease spreaders! FLEAS MOSQUITOS

31. VECTORS are NON-HUMAN disease spreaders! FLEAS MOSQUITOS

32. VECTORS are NON-HUMAN disease spreaders! BIRDS RATS https://www.youtube.com/watch?v=y68F8YwLWdg

33. How EPIDEMIOLOGISTS classify the spread of contagions: • AIR-BORNE-by breathing someone’s germs • WATER-BORNE-germs in contaminated water • VECTORS=NON-HUMANdisease spreaders • rats, mosquitos, birds, fleas, and more

34. IF A PERSON SPREADS A DISEASE BUT SHOWS NO SYMPTOMS… • THEY ARE A CARRIER.

35. IF A PERSON SPREADS A DISEASE BUT SHOWS NO SYMPTOMS… • THEY ARE A CARRIER. TYPHOID MARY http://www.youtube.com/watch?v=XE8HwwNqHG4

36. Several subcategories here How are contagions SPREAD: • AIR-BORNE-by breathing someone’s germs • WATER-BORNE-germs in contaminated water • VECTORS=non-humandisease spreaders • rats, mosquitos, birds, fleas and more • CARRIERS=humandisease spreaders

37. If a CARRIER can only infect someone by exchanging fluids… by contaminated needles by sexual contact

38. How are contagions SPREAD: • AIR-BORNE-by breathing someone’s germs • WATER-BORNE-germs in contaminated water • VECTORS=non-humandisease spreaders • rats, mosquitos, birds, fleas and more • CARRIERS=humandisease spreaders • Blood-borne-sexual contact/unclean needles

39. Sometimes CARRIERS can give someone a contagion more easily… by touching, kissing by sharing food & stuff

40. ! How are contagions SPREAD: • AIR-BORNE-by breathing someone’s germs • WATER-BORNE-germs in contaminated water • VECTORS=non-humandisease spreaders • rats, mosquitos, birds, fleas and more • CARRIERS=humandisease spreaders • Blood-borne-sexual contact/unclean needles • Direct Contact-touching, kissing, sharing food or drink

41. We can also catch infectious diseases on shared surfaces… keyboards

42. We can also catch infectious diseases on shared surfaces… keyboards doorknobs

43. We can also catch infectious diseases on shared surfaces… keyboards CELL PHONES!

44. How are contagions SPREAD: • AIR-BORNE-by breathing someone’s germs • WATER-BORNE-germs in contaminated water • VECTORS-non-human disease spreaders • rats, mosquitos, birds, fleas and more • CARRIERS-human disease spreaders • Blood-borne-sexual contact/unclean needles • Direct Contact-touching, kissing, sharing food or drink • Indirect Contact-touching surfaces that others contaminated

45. WHICH WAYS ARE HARDEST TO CONTROL? How are contagions SPREAD: • AIR-BORNE-by breathing someone’s germs • WATER-BORNE-germs in contaminated water • VECTORS-non-human disease spreaders • rats, mosquitos, birds, fleas and more • CARRIERS-human disease spreaders • Blood-borne-sexual contact/unclean needles • Direct Contact-touching, kissing, sharing food or drink • Indirect Contact-touching surfaces that others contaminated

46. WHICH WAYS ARE HARDEST TO CONTROL? How are contagions SPREAD: HARD TO CONTROL • AIR-BORNE-by breathing someone’s germs • WATER-BORNE-germs in contaminated water • VECTORS-non-human disease spreaders • rats, mosquitos, birds, fleas and more • CARRIERS-human disease spreaders • Blood-borne-through unprotected sex or unclean needles • Direct Contact-touching, kissing, sharing food or drink • Indirect Contact-touching surfaces that others contaminated HARD TO CONTROL HARD TO CONTROL

47. WHICH ONES ARE EASIER TO CONTROL???? How are contagions SPREAD: HARDEST TO CONTROL • AIR-BORNE-by breathing someone’s germs • WATER-BORNE-germs in contaminated water • VECTORS-non-human disease spreaders • rats, mosquitos, birds, fleas and more • CARRIERS-human disease spreaders • Blood-borne-through unprotected sex or unclean needles • Direct Contact-touching, kissing, sharing food or drink • Indirect Contact-touching surfaces that others contaminated HARD TO CONTROL HARD TO CONTROL

48. Why are WATER-BORNE and BLOOD-BORNE EASIEST for EPIDEMIOLOGISTS TO CONTROL? How are contagions SPREAD: • AIR-BORNE-by breathing someone’s germs • WATER-BORNE-germs in contaminated water • VECTORS-non-human disease spreaders • rats, mosquitos, birds, fleas and more • CARRIERS-human disease spreaders • Blood-borne-through unprotected sex or unclean needles • Direct Contact-touching, kissing, sharing food or drink • Indirect Contact-touching surfaces that others contaminated EASY TO CONTROL EASY TO CONTROL

49. EPIDEMIOLOGISTS FIRST ASK “HOW A GERM SPREADS” THEN MAKES A PLAN OF ATTACK. How are contagions SPREAD: • VECTORS-non-human disease spreaders • WATER-BORNE-germs in contaminated water • AIR-BORNE-by breathing someone’s germs • DIRECT CONTACT-touching, sharing food & drink • INDIRECT CONTACT-touching shared objects EASY TO CONTROL EASY TO CONTROL

50. Typhoid Mary RESISTED & was QUARANTINED. http://www.rednecklatte.com/2013/03/page/2/