Analysis of data obtained from discrete variables requires the use of specific statistical tests which are different from those used to assess continuous variables (such as cardiac output, blood pressure, or PaO 2) which can assume an infinite range of values.
Primary symptoms of dengue appear three to 15 days after the mosquito bite and include the following: 1  high fever and severe headache, 2  with severe pain behind the eyes that is apparent when trying to move the eyes.
With each infection of a new strain of Dengue, a person is increasingly like to contract Hemorrhagic fever. After being bitten by an infected mosquito, it usually takes 5-7 days for the first symptoms to occur.Common symptoms include fever with headache, severe muscle pain, joint pain and rashes on the body.Until now, there has been no effective medicine or vaccine for dengue.ith each infection of a new strain of Dengue, a person is increasingly like to contract Hemorrhagic fever. After being bitten by an infected mosquito, it usually takes 5-7 days for the first symptoms to occur.