Posts Tagged ‘pneumonia’

In Dire Need of Swine Flu Vaccine

Tuesday, November 24th, 2009

According to the World Health Organization, efforts for developing a swine flu vaccine has been ongoing since the first human case of the virus has been confirmed. Estimates place the initial doses of the vaccine will be administered in 5 to 6 months time.

While people diagnosed with H1N1 virus seems to be headed for recovery, there have been deaths recorded. Aside from that, receiving vaccines for this virus is important particularly the elderly and individuals with a weak immune system, since they are prone to complications such as pneumonia.

Likewise, the vaccine will serve as protection in case the condition persists particularly during the winter months which is the time when influenza is at its peak.

According to the World Health Organization (WHO), although they are still incomplete, current evidence shows that seasonal influenza vaccines will provide minimal or no protection against swine flu. Every year, a new batch of flu vaccine is developed and matched with strains that the WHO determines will most probably circulate in the winter months, which happens to be the peak season for influenza outbreaks.

Influenza virus comes in various strains which contains different proteins on their surfaces. The body’s immune system can only fight and destroy a virus if they are able to recognize these proteins. It is worth noting that antibodies that recognize one strain may not detect other strains.
Existing vaccines may only offer some protection against swine influenza if the proteins on its surface are identical to strains used to develop previous vaccines. According to the NIBSC, they are trying to determine if the swine flu virus, which is an H1N1 strain of type A influenza, as well as previous H1N1 vaccines match current vaccines.

The preparation of a vaccine commences after a virus develops as they provide the starting point for the production of the vaccine. As such, there is always a time delay while a vaccine is being developed. Preparation of a vaccine involves several steps so it would take several months before a vaccine becomes available.

According to WHO estimates, the virus needed for producing the vaccine will be accessible to vaccine manufacturers by the middle of May while the initial dose for a new vaccine would be ready within 5 to 6 months after that. Waiting time would be much longer if the growth of the vaccine proceeds rapidly.

Vaccination plays a crucial role in the prevention and reduction of the effects of serious conditions. Unfortunately, they are not entirely effective and could lose its effectiveness if the virus mutates.
Existing flu vaccines are valid for about one year and are 70% – 80% effective against transmission with strains of influenza virus that are identical to strains used in the production of vaccines.

The WHO believes that it is too early to tell how the A(H1N1) virus would change. It is closely monitoring any changes in the virus and this would help countries quickly react to any important changes that the virus may show.

Vaccines help the body combat certain diseases in case an individual becomes afflicted with the illness in the future. On the other hand, an antiviral drug is used on people who is already infected with a virus. Although they work in various ways, they generally work to prevent the virus from spreading to different cells in the body.

Swine flu vaccines are administered prior to exposure to a virus so they would be protected from that agent. Antivirals only work if administered within a certain period of time before or after they are exposed to the virus.

Pneumonia in Children

Thursday, June 4th, 2009

Pneumonia is the infection of the either one lung or both. When both the lungs get infected it is known as double pneumonia. When the pneumonia is mild enough that the visit to the doctor can be avoided and the child can carry out daily activities normally, it is known as walking pneumonia.

The lungs are an important part of the respiratory system. The air which is breathed in contains oxygen, which is filtered by the lungs. This oxygen then is carried around the body with the help of blood which is passed from the breathing tubes by the alveoli. Capillaries or the minute blood vessels are surrounded by small air sacs known as alveoli. There are over six hundred million alveoli in the human body. The air which is taken in is supplied to the alveoli; the oxygen extracted from the air is dissolved in the blood. Then it is the job of the red blood cells to distribute the oxygen to all the body parts. Oxygen is vital in the proper functioning of the human body and insufficient supply of oxygen can damage the organs and sometimes can be life threatening. This functioning is disturbed when the lungs get infected by pneumonia.

Pneumonia does not allow the lungs to function properly, because the infection produces fluid which obstructs the alveoli. In turn the oxygen does not penetrate deep inside the lungs and lesser oxygen is supplied to the blood. The breathing is affected and the condition worsens when both the lungs get infected with pneumonia.

People of all ages from infants to old could get affected with pneumonia. It is a myth among people that getting wet makes the person catch pneumonia. But it is actually the virus or the bacteria which causes the infection. When a person infected with flu or cold faces a deterioration in his/her condition, he/she can be infected with pneumonia. This happens because the irritation caused by the flu or cold helps the pneumonia germs to get into the lungs easily and move around to spread the infection.

The virus or bacteria which cause pneumonia can cause damages, whose severity can depend on the health of the child. If the infection is caused by bacteria, the child will get sick very soon and can get high temperature fever accompanied with chills. Pneumonia caused by virus develops very slowly and it takes longer time to go away. The child can also experiences cough, chest pain, headache, and or muscle ache. It can also make it difficult to breath, so the child will start to breath faster which may make him cough out gloppy mucus. The child would have to totally abstain from eating.

When given the right treatment, the child can recover fully. The doctor will first examine the heartbeat and breathing with the help of the stethoscope. The stethoscope also helps to check the lungs, the sounds made by the lungs help to determine if it contains any fluids. Sounds such as crackling or bubbling are indications of pneumonia. Chest X-ray will be taken too. White patchy area will show fluid buildup. By looking at the X-ray, the doctor can also determine whether the infection is caused by bacteria or virus. If it is caused by bacteria, antibiotics will be prescribed. And if it is difficult for the child to swallow the medicine or to retain it inside, he/she will be injected with IV fluid. And if virus is responsible for the infection, antibiotics wont work. Fever reducers, along with cough medicine, will be given in this case. The medicines will be of no use, if the child doesnt take adequate rest and plenty of liquids.

Shots can be taken to prevent pneumonia. These series of shots are called pneumococcal. Regular flu shots can also prove helpful, especially for kids who have asthma or other kinds of lung infection. Rest and sleep also strengthens the immune system. Washing hands regularly can keep harmful germs at bay.

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Living With Heart Failure-How Congestive Heart Failure Impacts Your Life

Sunday, April 5th, 2009

Living With Heart Failure-How Congestive Heart Failure Impacts Your Life

Heart failure, as well as all the risks that accompany it, can be a terrifying prospect for any man, woman or child. The impact of a heart, the body’s central tool for survival, no longer functioning may seem like the beginning of the end. The good news is, by establishing an effective treatment plan with your cardiologist the prognosis, and the chances for you to lead a normal life, increase exponentially.

Heart failure occurs when the heart can no longer efficiently pump blood throughout the body. The blood pools, and while organs are deprived of vital, life giving oxygen and nutrients the excess sodium that would normally be excreted in the urine builds up in the tissues, resulting in fluid retention that leads to organ stress and the dyspnea that is so common in cases of congestive heart failure. Left untreated, the oxygen deprived organs will eventually cease to function and the patient will die.

Fortunately, there are now many ways to combat the mortality factor associated with heart failure. Doctors can prescribe medications to facilitate the flow of blood through the body and take some of the pressure off the heart; blood thinners can decrease the chances of clots forming in the veins. Aside from medicinal means, there are many factors that may be altered in your lifestyle to impact the prognosis of your disease.

It is essential that the body be given sufficient time to rest in a day. While at rest the heart can more easily pump blood throughout the body; just as you would rest an injured leg when it began to pain you, you should rest your heart as well. On the flip side, it is important to establish a daily exercise routine. It doesn’t have to be three hours of aerobics; a half hour walk every day would have a greater impact on your physical being than nothing. Consult with your physician to find the plan that works best for your individual circumstances.

Along with an exercise plan you should work with your doctor to find the best diet plan for you. In most cases a low sodium diet is recommended to help reduce fluid retention. Diuretics can greatly affect the levels of potassium in the body causing hypokalemia, which can lead to muscle weakness, paralysis and a fatal cardiac arrhythmia; therefore, very often if you have been given a diuretic to take daily a potassium supplement will also be prescribed.

Nicotine can create a serious problem for patients with heart failure. It increases the heart rate and blood pressure while having a negative impact on the oxygen level in the blood. All of these things cause the heart to work harder. It is strongly recommended that if you have been diagnosed with heart failure you quit smoking completely.

Hand in hand with smoking are the inherent dangers associated with contracting a case of pneumonia or flu. If you are able you should receive an annual flu shot, as well as the one time dose of pneumococcal vaccine. This will provide some level of protection against pneumococci bacteria, the major cause of bacterial pneumonia. Pneumonia is a problem for the same reasons as smoking; the decreased oxygen levels in the blood cause the heart to work harder in an attempt to compensate and get oxygen to the organs and tissues. If possible, avoid crowded areas during cold and flu season, and stay away from people you know are sick.

Amazingly, something as simple as the clothes you wear can impact your condition if you have suffered heart failure. Tight clothing can cause blood clots and restrict blood flow to the extremities. In addition, in cases of extreme temperature your clothes should be weather appropriate; if the body has to work to maintain its temperature the heart will have to work that much harder.

Sexual relations can usually be continued as before; however, they should occur in as peaceful an environment as possible to prevent undue stress. If your condition is severe it is important that you discuss this with your physician; it may be necessary to forego sexual relations for a time in favor of other, less stressful shows of affection.

Each of these steps will help you continue to live much as you did before being diagnosed. Heart failure will inevitably impact your life; it is entirely up to you how much.