FLU FACTS:
-Both colds and flu usually last the same seven to 10 days, but flu can go three to four weeks; the flu virus may not still be there, but you have symptoms long after it has left. Allergy can last weeks or months.
-The winter flu epidemic is again around us full force and in a given locality it reaches its peak in 2 to 3 weeks and lasts 5 to 6 weeks. Then is disappears as quickly as it arrived. The reason for this is not completely clear. The usual pattern is for a rise in the incidence of flu in children, which precedes an increase in the adult population (that is on the rise in our hospitals).
-The flu virus can lead to serious complications, including bronchitis, viral or bacterial pneumonia and even death in elderly and chronically ill patients. Twenty thousand or more people die of the flu in the America each year. Know this that the frequency of human contact across the world and the highly infectious nature of the virus make this explanation difficult to accept. Moreover there is no evidence of persistent or latent infection with influenza viruses. In any case, this idea is not really very difficult from the notion that the virus circulates at a low level throughout the year and seizes its opportunity to cause an outbreak when conditions allow.
-Even harder to explain is why the flu disappears from a community when there are still a large number of people susceptible to infection. Than even harder than that is why flu is a winter disease, which is not fully understood or known. However, flu is spread largely by droplet (aerosol) infection from individuals with high viral level in their nasal and throat secretions, sneezing, and coughing on anyone close at hand. The aerosol droplets of the right size (thought to be about 1.5 micrometers in diameter) remain airborne and are breathed into the nose or lungs of the next victim. This is why the pt. stays confined in a isolation room in a hospital on droplet isolation.
-Situations in which people are crowded together are more commonly in cold or wet weather and so perhaps this contributes to spreading the flu at these times. It is interesting that in equatorial countries, flu occurs throughout the year, but is highest in the monsoon or rainy season. Enough about facts but onto logical thinking for when we or someone we know has it and what questions we might be asking ourselves.
Don’t forget so you understand if your in a hospital in the ER and than put on a unit in an droplet/contact isolation room (a room where staff and visitors wear masks, gowns and gloves with you not allowed out of that room; the reason for this is you may be able to pass on the flu to someone else. Know you can pass on the flu even before you know you are sick, as well as while you are sick. Although people with the flu are most contagious in the first 3-4 days after their illness begins, some otherwise healthy adults may be able to infect others beginning 1 day before symptoms develop and up to 5 to 7 days after becoming sick. Some people, especially young children and people with weakened immune systems, might be able to infect others with flu viruses for an even longer time.
The first and most important step in preventing flu is to get a flu vaccination each year. CDC also recommends everyday preventive actions (like staying away from people who are sick, covering coughs and sneezes and frequent handwashing) to help slow the spread of germs that cause respiratory (nose, throat, and lungs) illnesses, like flu.
It is very difficult to distinguish the flu from other viral or bacterial causes of respiratory illnesses on the basis of symptoms alone. There are tests available to diagnose flu.
A number of flu tests are available to detect influenza viruses in respiratory specimens. The most common are called “rapid influenza diagnostic tests (RIDTs).” RIDTs work by detecting the parts of the virus (antigens) that stimulate an immune response. These tests can provide results within approximately 10-15 minutes, but are not as accurate as other flu tests. Therefore, you could still have the flu, even though your rapid test result is negative. Other flu tests are called “rapid molecular assays” that detect genetic material of the virus. Rapid molecular assays produce results in 15-20 minutes and are more accurate than RIDTs. In addition, there are several more-accurate and sensitive flu tests available that must be performed in specialized laboratories, such as those found in hospitals or state public health laboratories. All of these tests require that a health care provider swipe the inside of your nose or the back of your throat with a swab and then send the swab for testing. Results may take one hour or several hours.
How well can rapid tests detect the flu?
During an influenza outbreak, a positive rapid flu test is likely to indicate influenza infection. However, rapid tests vary in their ability to detect flu viruses, depending on the type of rapid test used, and on the type of flu viruses circulating. Also, rapid tests appear to be better at detecting flu in children than adults. This variation in ability to detect viruses can result in some people who are infected with the flu having a negative rapid test result. (This situation is called a false negative test result.) Despite a negative rapid test result, your health care provider may diagnose you with flu based on your symptoms and their clinical judgment.
Now you know what the flu is from Part I, in Part II you know the treat- ments, the strategies and the best prevention of the flu and lastly today in Part III the facts on the flu! Remember its on a up rise now so do all you can in preventing it for your health!