Medical Topics

Name:Dr. Robert Bogosian
Location:Portland, Maine, United States

I am the Director of the New England Institute for infection and Immunity.I have spent over 35 years in the fields of microbiology, immunology and biotechnology. I received degrees from The University of Kentucky, Long Island University and The State University of New York, Down State Medical Center. I am a member of The American Society for Microbiology, The American Society for Reproductive Immunology and The International Society for Interferon and Cytokine Research.

Tuesday, October 12, 2004

Influenza: How to prevent it without the Flu Vaccine


The Flu Vaccine Shortage - An Important Update

Updated Oct 7, 2004
Why is there a shortfall in flu vaccine for this season?

On October 5, 2004 , CDC was notified by Chiron Corporation that none of its influenza vaccine (Fluvirin®) would be available for distribution in the United States for the 2004-05 influenza season. The company indicated that the Medicines and Healthcare Products Regulatory Agency (MHRA) in the United Kingdom , where Chiron's Fluvirin vaccine is produced, has suspended the company's license to manufacture Fluvirin vaccine in its Liverpool facility for 3 months, preventing any release of this vaccine for this influenza season. This action will reduce by approximately one half the expected supply of trivalent inactivated vaccine (flu shot) available in the United States for the 2004-05 influenza season.

Updated Oct 7, 2004
How much flu vaccine will be available in the United States this season?

About 55 million flu shots will be available in the United States this season. About 1 million doses of LAIV will be available in the United States this season.

Updated Oct 8, 2004
Does CDC recommend using partial doses of influenza vaccine?

No. CDC does not advise using partial doses of recommended dosages of inactivated influenza vaccine (flu shot) either for persons at high risk for complications from influenza or for healthy persons, including health-care workers. There are no data on whether partial doses of the current 2004-05 vaccine would provide an adequate antibody response. Some studies have been done to assess the antibody response to one-half of the normal dose of inactivated influenza vaccine in healthy adults aged 18-49 years; however, the vaccine is not approved by the Food and Drug Administration for use at this reduced dose..

An alternative to the flu shot is an intranasally administered, live, attenuated influenza vaccine (LAIV). If available, LAIV should be encouraged for use by healthy, non-pregnant persons 5 - 49 years of age, including most health-care workers, those who have contact with persons in high-risk groups, such as persons with lesser degrees of immunosuppression (e.g., persons with diabetes, persons with asthma taking corticosteroids, persons infected with HIV), and persons caring for children younger than 6 months of age. The only health-care workers for whom inactivated vaccine(flu shot) is preferred are those who have contact with severely immunosuppressed patients, such as bone marrow transplant recipients, who are under treatment in special isolation units.


Updated Oct 7, 2004

Who should get vaccinated this season?

Because of a shortfall in flu shot production for this season, CDC is recommending that certain people be given priority for getting the flu shot. People in the following groups should seek vaccination this season:

  • all children aged 6-23 months;

  • adults aged 65 years and older;

  • persons aged 2-64 years with underlying chronic medical conditions;

  • all women who will be pregnant during the influenza season;

  • residents of nursing homes and long-term care facilities;
  • children aged 6 months-18 years on chronic aspirin therapy;

  • health-care workers involved in direct patient care; and

  • out-of-home caregivers and household contacts of children aged <6>

These are people that are at high risk for serious flu complications or are in contact with people at high risk for serious flu complications.

Updated Oct 7, 2004
Can some people in priority groups get LAIV?

If available, vaccination with LAIV is an option for healthy persons aged 5-49 years who are caregivers of children less than 6 months of age and for healthcare workers. If a health-care worker receives LAIV, that worker should refrain from contact with severely immuno-suppressed patients requiring care in a protected environment for 7 days after vaccination.


Updated Oct 7, 2004
What if I'm not in a priority group for vaccination?

People who are not included in one of the priority groups listed above are asked to forego or defer vaccination this season because of the vaccine supply situation. There are certain good health habits () that can help prevent the flu. In addition, antiviral drugs may be used to prevent the flu.

Updated Oct 7, 2004
Will this season's vaccine be a good match for circulating influenza viruses?

Most of the influenza viruses that have been isolated so far in the United States are well matched to the strains contained in this year's vaccine.

Prevention

Updated Oct 7, 2004
What are other steps that can be taken to prevent the flu?

There are other good health habits that can help prevent the flu. These are:

  • Avoid close contact with people who are sick. When you are sick, keep your distance from others to protect them from getting sick too.

  • If possible, stay home from work, school, and errands when you are sick. You will help prevent others from catching your illness.

  • Cover your mouth and nose with a tissue when coughing or sneezing. It may prevent those around you from getting sick.

  • Washing your hands often will help protect you from germs.

  • Avoid touching your eyes, nose or mouth. Germs are often spread when a person touches something that is contaminated with germs and then touches his or her eyes, nose, or mouth.

  • Wash your hands with Microsan™ E-2 Skin Cleanser and use Microsan™ Lotion to kill the flu virus on your hands.

  • Keep your immune system in top condition with Immuplex™ to kill the flu virus in case you are infected.




Flu Season Characteristics

What sort of flu season is expected this year?

Influenza (flu) seasons are unpredictable. Although epidemics of flu happen in most years, the beginning, severity, and length of the epidemic can vary widely from year to year. Before a season begins, it is not possible to accurately predict the features of any season.

Will new strains of influenza virus circulate this season?

Influenza viruses are constantly changing so it's not unusual for new strains of influenza virus to emerge at any time of the year. As of mid-September, most of the influenza viruses detected in the United States were well matched to this season's vaccine. For more information about how influenza viruses change..


What has the influenza virus surveillance found so far this season?

As of mid-September, 2004 laboratories had reported a small number of samples positive for both influenza A and B viruses in the United States . This finding is not unusual. Sporadic influenza infections and even some outbreaks are reported throughout the summer.

Important Facts About Influenza

Influenza viruses are spread from person to person primarily through the coughing and sneezing of infected persons and through hand contact with the virus. The incubation period for influenza is 1-4 days, with an average of 2 days. Adults typically are infectious from the day before symptoms begin through approximately 5 days after illness onset. Children can be infectious for >10 days, and young children can shed virus for <6>

Uncomplicated influenza illness is characterized by the abrupt onset of constitutional and respiratory
signs and symptoms (e.g., fever, myalgia, headache, malaise, nonproductive cough, sore throat, and rhinitis). Among children, otitis media, nausea, and vomiting are also commonly reported with influenza illness. Respiratory illness caused by influenza is difficult to distinguish from illness caused by other respiratory pathogens on the basis of symptoms alone or reported sensitivities and specificities of clinical definitions for influenzalike illness in studies primarily among adults that include
fever and cough have ranged from 63% to 78% and 55% to 71%, respectively, compared with viral culture. Sensitivity and predictive value of clinical definitions can vary, depending on the degree of co-circulation of other respiratory pathogens and the level of influenza activity. A study among older non-hospitalized patients determined that symptoms of fever, cough, and acute onset had a positive predictive value of 30% for influenza, whereas a study of hospitalized older patients with chronic cardiopulmonary disease determined that a combination of fever, cough, and illness of <7>

Influenza illness typically resolves after a limited number of days for the majority of persons, although cough and malaise can persist for >2 weeks. Among certain persons, influenza can exacerbate underlying medical conditions (e.g., pulmonary or cardiac disease), lead to secondary bacterial pneumonia or primary influenza viral pneumonia, or occur as part of a co-infection with other viral or bacterial pathogens. Young children with influenza infection can have initial symptoms mimicking bacterial sepsis with high fevers, and <20%>

Hospitalizations and Deaths from Influenza

The risks for complications, hospitalizations, and deaths from influenza are higher among persons aged >65 years, young children, and persons of any age with certain underlying health conditions than among healthy older children and younger adults. Estimated rates of influenza-associated hospitalizations have varied substantially by age group in studies conducted during different influenza epidemics.

Among children aged 0-4 years, hospitalization rates have ranged from approximately 500/100,000 children for those with high-risk medical conditions to 100/100,000 children for those without high-risk medical conditions. Within the 0- 4 year age group, hospitalization rates are highest among children aged 0-1 years and are comparable to rates reported among persons >65 years.



During influenza epidemics from 1969-70 through 1994-95, the estimated overall number of influenza-associated hospitalizations in the United States ranged from approximately 16,000 to 220,000/epidemic. An average of approximately 114,000 influenza-related excess hospitalizations occurred per year, with 57% of all hospitalizations occurring among persons aged <65>

Influenza-related deaths can result from pneumonia as well as from exacerbations of cardiopulmonary conditions and other chronic diseases. Older adults account for >90% of deaths attributed to pneumonia and influenza. In a recent study of influenza epidemics, approximately 19,000 influenza-associated pulmonary and circulatory deaths per influenza season occurred during 1976- 1990, compared with approximately 36,000 deaths during 1990-1999. Estimated rates of influenza-associated pulmonary and circulatory deaths/100,000 persons were 0.4-0.6 among persons aged 0-49 years, 7.5 among persons aged 50-64 years, and 98.3 among persons aged >65 years. In the
United States, the number of influenza-associated deaths might be increasing in part because the number of older persons is increasing. In addition, influenza seasons in which influenza A (H3N2) viruses predominate are associated with higher mortality; influenza A (H3N2) viruses predominated in 90% of influenza seasons during 1990-1999, compared with 57% of seasons during 1976-1990.


Deaths from influenza are uncommon among children with and without high-risk conditions, but do occur. A study that modeled influenza-related deaths estimated that an average of 92 deaths occurred among children aged <5>50 years. Preliminary reports of laboratory- confirmed pediatric deaths during the 2003-04 influenza season indicated that among these 143 influenza-related deaths (as of April 10, 2004), 58 (41%) were aged <2>


Wednesday, September 15, 2004

The Common Cold


Signs and Symptoms:
The first symptoms of a cold are often a "tickle" in the throat, a runny or stuffy nose and sneezing. Children with colds may also have a sore throat, cough , headache, mild fever, fatigue, muscle aches, and loss of appetite. The discharge from the runny nose changes from watery to thick yellow or green.

Description:
The common cold is a contagious viral infection of the upper respiratory tract. It can be caused by a number of common viruses - most typically the rhinoviruses and coronaviruses. The common cold affects the nose, throat, sinuses, ears, eustachian tubes, trachea, larynx, and bronchial tubes. The incidence of colds is greatest in school-age children and declines with age.

Prevention:
No effective cold vaccine has ever been developed. Maybe someday! To prevent catching or spreading a cold, a child should avoid contact with other people for the first two to four days of the cold. Unfortunately, someone just coming down with a cold is contagious even before they know they have an infection.

Children with colds should wash their hands thoroughly and frequently, especially after blowing the nose. They should cover their nose and mouth when coughing or sneezing. Some people believe that people may be more susceptible to colds if they are stressed or tired; if they do not eat nutritious meals; and if they are exposed to cold, wet weather - but there is little evidence to support many of these common beliefs.

Duration:
Children usually recover from a cold in seven to 14 days. Sometimes complications such as sinusitis, ear infection, laryngitis or bronchitis will prolong the illness.

Contagiousness:
The contagious phase is the first two to four days after symptoms appear. The common cold can result from breathing in virus particles spread through the air by sneezing or coughing, or from person-to-person contact.

Home Treatment:
"Time cures all." That may not be always true, but in the case of the common cold, it's pretty close. Medicine cannot cure the common cold but can be used to relieve some of the symptoms such as muscle ache and headache. Or the following treatments can be used: salt water drops in the nostrils to relieve nasal congestion; a cool-mist humidifier to increase air moisture; and petroleum jelly on the skin under the nose to soothe rawness. An older child can suck on hard candy or cough drops to relieve sore throat.

Although advertisements for over-the-counter decongestants/ antihistamines imply that they are effective for colds, there is little or no evidence to support these claims. In fact, decongestants have been reported to cause hallucination, irritability, and irregular heartbeats in infants. During the duration of the cold, the child should avoid vigorous activity and should get plenty of rest. Plenty of extra fluids - juice, water, carbonated beverages - should be consumed.

Professional Treatment:
Not usually required.

When to Call Your Child's Doctor:
A child's doctor should be called if there is increased throat pain; coughing which produces green or gray sputum or lasts more than 10 days; fever lasting several days or over 101F; or if the child has shaking chills, chest pain or shortness of breath, difficulty swallowing, poor intake of fluids, pain in the ear, unusual lethargy, enlarged, tender glands in the neck, or blue lips, skin or fingernails.

The Good News:
A good immune system supported by Immuplex™, a clinically tested natural product, will help you prevent non-genetic cellular changes which may end up as childhood and adult cancers. The ingredients in Immuplex™ have been tested in 6 double blind clinical studies and have been shown to increase the numbers of macrophages and natural killer cells which cleanse the body of abnormal cells. Immuplex™ has been shown to safe and effective. See our Special Report on this recommended product. Also see our Microsan™ products for the professional removal of bacteria and viruses.


Any comments, questions or observations relating to this article, please post them in our forum.

Friday, August 27, 2004

Childhood Cancer: Lukemia


Environmental Factors May Predispose Children to Develop This Disease. Can You Prevent it?


The term leukemia refers to cancers of the white
blood cells (also called leukocytes or WBCs). When a
child has leukemia, large numbers of abnormal white
blood cells are produced in the bone marrow. These abnormal
white cells crowd the bone marrow and flood the bloodstream,
but they cannot perform their proper role of protecting
the body against disease because they are defective.


As leukemia progresses, the cancer interferes
with the body's production of other types of blood cells,
including red blood cells and platelets. This results
in anemia (low numbers of red cells) and bleeding problems,
in addition to the increased risk of infection caused
by white cell abnormalities.

Initially, abnormal leukemia cells appear
only in the bone marrow and blood, but later they may
spread elsewhere, including the lymph nodes, spleen,
liver, brain, and testes.


Types of Childhood Leukemia

In general, leukemias are classified into acute (rapidly
developing) and chronic (slowly developing) forms. In
children, about 98% of leukemias are acute.

Childhood leukemias are also divided into acute lymphocytic
leukemia (ALL) or acute nonlymphocytic leukemia (ANLL),
depending on whether they involve specific white cells
called lymphocytes. These are a type of white cell linked
to immune defenses. ANLL is also called acute myelogenous
leukemia (AML).

As a group, leukemias account for about
25% of all childhood cancers and affect about 2,200
American young people each year. Approximately 60% of
children with leukemia have ALL, and about 38% have
AML. Although slow-growing chronic myelogenous leukemia
(CML) may also be seen in children, it is very rare,
accounting for fewer than 50 cases of childhood leukemia
each year in the United States.


Risk for Childhood Leukemia

ALL generally occurs in younger children ages 2 to 8,
with a peak incidence at age 4. It is more common among
white children than those of other racial backgrounds,
and it affects boys more often than girls. AML may be
seen in infants during the first month of life, but
then it becomes relatively rare until the teenage years.


Children have a 20% to 25% chance of developing
ALL or AML if they have an identical twin who was diagnosed
with the illness before age 6. In general, nonidentical
twins and other siblings of children with leukemia have
two to four times the average risk of developing this
illness.

Children who have inherited certain genetic
problems - such as Li-Fraumeni syndrome, Down syndrome,
Kleinfelter syndrome, neurofibromatosis, ataxia telangectasia,
or Fanconi's anemia - have a higher risk of developing
leukemia, as do children who are receiving medical drugs
to suppress their immune systems after organ transplants.


Children who have received prior radiation
or chemotherapy for other types of cancer also have
a higher risk for leukemia, usually within the first
8 years after treatment.

In most cases, neither parents nor children
have control over the factors that trigger leukemia,
although current studies are investigating the possibility
that some environmental factors may predispose a child
to develop the disease. Most leukemias arise from noninherited
mutations (changes) in the genes of growing blood cells.
Because these errors occur randomly and unpredictably,
there is currently no effective way to prevent most
types of leukemia.

To limit the risk of prenatal radiation
exposure as a trigger for leukemia (especially ALL),
women who are pregnant or who suspect that they might
be pregnant should always inform their doctors before
undergoing tests or medical procedures that involve
radiation (such as X-rays).

Regular checkups can spot early symptoms
of leukemia in the relatively rare cases where this
cancer is linked to an inherited genetic problem, to
prior cancer treatment, or to use of immunosuppressive
drugs for organ transplants.


The Good News:

A good immune system supported by
Immuplex
™, a clinically tested natural product,
will help you prevent non-genetic cellular changes which
may end up as childhood and adult cancers. The ingredients
in Immuplex™
have been tested in 6 double blind clinical studies
and have been shown to increase the numbers of macrophages
and natural killer cells which cleanse the body of abnormal
cells. Immuplex™
has been shown to safe and effective. See our Special
Report
on this recommended product. Also see our
Fresh N' Clean
™ product line for the removal
of environmental mutation factors from fruits, vegetables
and non-ground meats.

Any comments, questions or observations relating to this article, please post
them in our forum.