why isnt there any correlation between the monthly rainfall and Ross River Virus?

Since this is not my area of expertise, I searched Google under the key words "rainfall and Ross River Virus" to get these possible sources:

http://www.google.com/search?client=safari&rls=en&q=rainfall+and+Ross+River+Virus&ie=UTF-8&oe=UTF-8

In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.

To determine why there may not be any correlation between monthly rainfall and the Ross River Virus, we can follow these steps:

1. Understand the Ross River Virus:
- The Ross River Virus (RRV) is primarily transmitted by mosquitoes to humans.
- RRV causes symptoms such as joint pain, fever, fatigue, and rash.
- It is prevalent in regions where mosquito vectors and infected animals are present.

2. Gather data:
- Collect monthly rainfall data for the study period.
- Obtain data on reported cases or infection rates of the Ross River Virus during the same period.
- Ensure that the data sources are reliable and cover the appropriate geographical area.

3. Analyze the data:
- Plot a graph to visualize the trends in monthly rainfall and Ross River Virus infections.
- Check for correlations using statistical measures, such as Pearson's correlation coefficient, to determine the strength and direction of the relationship.

Possible reasons for the absence of correlation:
a. Lag time: There might be a delay between rainfall and the appearance of mosquitoes. The virus transmission may occur several weeks after the rainy season, so the correlation might not be immediate.
b. Other factors: The presence of other environmental variables, such as temperature, humidity, or mosquito control measures, could mask the correlation between rainfall and RRV infections.
c. Incomplete data: Ensure that the data collected is comprehensive and free from errors, as missing or inaccurate data can affect the correlation analysis.

4. Consider additional factors:
- Investigate if there are alternative factors influencing the prevalence of RRV, such as human behavior, population density, or changes in the mosquito population.
- Explore scholarly research or consult with experts in the field to gather additional insights.

Remember that correlation does not imply causation. While rainfall may be a factor in mosquito abundance and virus transmission, there might be several other variables at play that affect the prevalence of the Ross River Virus.