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The transmission of West Nile virus is shown in the illustration above. Use this illustration for questions 9 and 10 in your Digital Lab Notes. Then return to this page and scroll down to learn more about the Virus Spread.
The transmission of West Nile virus is shown in the illustration above. Use this illustration for questions 9 and 10 in your Digital Lab Notes. Then return to this page and scroll down to learn more about the Virus Spread.
Click HERE to read questions 9-10
Click HERE to read questions 9-10
Base your answers to questions 1 and 2 on the Virus Transmission illustration and the text above.
Base your answers to questions 1 and 2 on the Virus Transmission illustration and the text above.
9. The transmission of West Nile virus is shown in the illustration above. Based on this illustration, in your Digital Lab Notebook, put an “X” in front of the statements below that are correct.
9. The transmission of West Nile virus is shown in the illustration above. Based on this illustration, in your Digital Lab Notebook, put an “X” in front of the statements below that are correct.
_____ Birds can become infected with West Nile virus when they are bitten by mosquitoes.
_____ Birds can become infected with West Nile virus when they are bitten by mosquitoes.
_____ Humans and horses can become infected with West Nile virus when they are bitten by mosquitoes.
_____ Humans and horses can become infected with West Nile virus when they are bitten by mosquitoes.
_____ Mosquitoes can become infected with West Nile virus when they bite birds.
_____ Mosquitoes can become infected with West Nile virus when they bite birds.
_____ Birds can transmit West Nile virus to other birds.
_____ Birds can transmit West Nile virus to other birds.
_____ Birds can transmit West Nile virus to humans.
_____ Birds can transmit West Nile virus to humans.
_____ Mosquitoes can become infected with West Nile virus when they bite humans or horses.
_____ Mosquitoes can become infected with West Nile virus when they bite humans or horses.
_____ West Nile virus can be transmitted by human to human contact.
_____ West Nile virus can be transmitted by human to human contact.
10. Before 1999, the West Nile virus had never been found in the United States. It had only been found in Europe, the Middle East, and Africa. What two organisms most likely carried West Nile virus to the United States from Europe, the Middle East, or Africa?
10. Before 1999, the West Nile virus had never been found in the United States. It had only been found in Europe, the Middle East, and Africa. What two organisms most likely carried West Nile virus to the United States from Europe, the Middle East, or Africa?
Virus Spread (from place to place)
Virus Spread (from place to place)
Birds infected with West Nile Virus and mosquitoes that bite the birds have spread West Nile virus to humans and animals in other parts of the United States. The black areas on the continental United States maps below show cases of West Nile virus encephalitis in 1999, and 10 years later in 2009.
The Virus Spread (from place to place) is shown in the illustration above. Use this illustration for questions 11 and 12 in your Digital Lab Notes. Then return to this page and scroll down to learn more about the Climate Change and West Nile Virus.
The Virus Spread (from place to place) is shown in the illustration above. Use this illustration for questions 11 and 12 in your Digital Lab Notes. Then return to this page and scroll down to learn more about the Climate Change and West Nile Virus.
Click HERE to read questions 11-12
Click HERE to read questions 11-12
11. Explain how West Nile virus could spread so rapidly throughout the continental United States.
11. Explain how West Nile virus could spread so rapidly throughout the continental United States.
12. Predict where in the continental United States you would expect to find West Nile virus in 2019.
12. Predict where in the continental United States you would expect to find West Nile virus in 2019.
Natural Host
Natural Host
Birds
Birds
Warmer winters, a longer frost-free season, and earlier spring arrival may change the migration patterns and survival of birds that are the natural hosts of the West Nile Virus.
Insect Vector Host
Insect Vector Host
Mosquitoes
Mosquitoes
Rising temperature, changing precipitation patterns, and extreme weather events are likely to increase aquatic habitats for mosquito breeding and increase mosquito and viral reproduction rates.
Incidental Host
Incidental Host
Humans
Humans
Humans are not central to the West Nile Virus transmission cycle, but they can suffer serious health consequences if infected. Changing weather patterns will likely impact human behavior and exposure to mosquitoes that carry West Nile virus.
The Climate Change and West Nile Virus is shown in the illustration above. Use this illustration for questions 13 through 18 in your Digital Lab Notes. Then return to this page and scroll down to learn more about the Virus Spread.
The Climate Change and West Nile Virus is shown in the illustration above. Use this illustration for questions 13 through 18 in your Digital Lab Notes. Then return to this page and scroll down to learn more about the Virus Spread.
Click HERE to read questions 13-17
Click HERE to read questions 13-17
13. How would an increase in bird populations affect the number of mosquitoes that carry the West Nile virus?
13. How would an increase in bird populations affect the number of mosquitoes that carry the West Nile virus?
14. How would an increase in mosquito populations affect the number of birds infected with West Nile virus?
14. How would an increase in mosquito populations affect the number of birds infected with West Nile virus?
15. How would an increase in mosquito populations affect the number of humans infected with West Nile virus?
15. How would an increase in mosquito populations affect the number of humans infected with West Nile virus?
16. What environmental factors might lead to increased bird populations in an area?
16. What environmental factors might lead to increased bird populations in an area?
17. What environmental factors might lead to increased mosquito populations in an area?
17. What environmental factors might lead to increased mosquito populations in an area?
Climate change is a change in the average conditions — such as temperature and precipitation — in a region over a long period of time. NASA scientists have observed that the Earth’s surface is warming and the distribution of precipitation is changing.
Climate change is a change in the average conditions — such as temperature and precipitation — in a region over a long period of time. NASA scientists have observed that the Earth’s surface is warming and the distribution of precipitation is changing.
Modified from: https://climatekids.nasa.gov/climate-change-meaning/
Modified from: https://climatekids.nasa.gov/climate-change-meaning/
Click HERE to read question 18
Click HERE to read question 18
18. Scientists claim that climate change is likely to cause an increase in the number of people infected with West Nile virus. Cite two pieces of evidence from the illustrations and text in Part 3 to support this claim. Record your response in your Digital Lab Notebook, then click Next Page.
18. Scientists claim that climate change is likely to cause an increase in the number of people infected with West Nile virus. Cite two pieces of evidence from the illustrations and text in Part 3 to support this claim. Record your response in your Digital Lab Notebook, then click Next Page.
CLICK Next Page when you finish recording your responses in your digital lab notebook.
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