Data collection in public health

Write 300-500 words in an essay style answer to respond to the following question:

Collecting data in public health has typically been an arduous process. Lack of relevant, accurate and timely data for research to inform policy may negatively affect public health.

• Select one of the traditional data collection and reporting systems used in public health and one of the “new means” of data collection.
• Compare these methods of data collection by listing and describing the advantages and disadvantages of each method

1- with references 

2- no plagiarism