Suppose that you began a one-year study of tuberculosis (TB) in St. Petersburg on January 1st, 2018. You enrolled 200 residents
in your study and checked on their TB status on a monthly basis. At the start of your study on January 1st, you screened all 200 residents. Upon screening, you found that 10 of the healthy residents were immigrants who were vaccinated for TB and so were not at risk. Another 10 residents already had existing cases of TB on January 1st. On February 1st, two residents developed TB. On April 1st, three more residents developed TB. On July 1st, three of the residents who had existing TB on January 1st died from their disease. The study ended on December 31, 2018. Assume that once a person gets TB, they have it for the duration of the study, and assume that all remaining residents stayed healthy and were not lost to follow-up. What was the prevalence of TB in the screened community on January 1st?
The Prevalence rate is the term used to describe the percentage of a population that have contacted the disease being tested for. It is usually done over a certain period or a certain time.
The prevalence of TB in the screened community on January 1st therefore is;
• Predominantly multicellular not in bacteria but in human body <span>• Cell contains a nucleus and other membrane bound organelles not in bacteria but in human body </span> <span>• DNA occurs in a circular form in bacteria only </span>
An aphid eats from grass which creates High levels of glucose from the process of photosynthesis therefore when the aphid eats the grass the glucose is transferred to the aphid and as a result has a higher concentration of dissolved sugars
