Category: Diseases and injuries

Overview of Viral Diseases

Bacterial infections can be treated with antibiotics, while antiviral medications are limited. Vaccines exist for several viruses and bacteria, including influenza, MMR, and Hepatitis strains. However, diseases like malaria and HPV require additional attention. Many infections lack preventive vaccines, emphasizing the importance of consulting physicians for advice on vaccinations and disease prevention.

Virus vs Bacteria

One major difference between bacterial and viral infections is the treatment. We have many more effective antibiotics (drugs which fight bacteria) than we do antiviral drugs.

And antibiotics do not affect viruses. Despite that fact, patients often expect and even demand their physicians prescribe antibiotics for viral infections such as influenza, colds and bronchitis- and unfortunately too often we physicians do it anyway.

6 smart facts about antibiotic use

Influenza- the vaccine is given annually and targeted to the strains of virus predicted to be active in any given year.

 

Measles (rubeola), Mumps, Rubella (German measles) -I am grouping these together since their vaccines are usually given together as the MMR. Recent outbreaks of measles have been attributed to the decline in vaccination rates. 

Polio, a disease parents feared when I was a child, due to to risk of permanent paralysis, now essentially eradicated in the United States

Rotavirus,  in infants and small children, a common cause of gastroenteritis- vomiting and diarrhea, with or without fever and abdominal pain

HPV, the human papilloma virus, causes warts of all kinds, but the vaccine is targeted to the strains that cause genital warts and cervical cancer

The cousin viruses, Hepatitis A and Hepatitis B.

Hepatitis is an infection of the liver, which can range from a mild disease to life threatening. Hepatitis A is spread through contaminated food or water. Hepatitis B is spread through contact with infected blood or other body fluids.

Another set of cousins, Varicella Zoster (VZ) virus causes two different infections and thus has two vaccines. The original infection is  varicella or chickenpox, formerly a common childhood illness but not seen often now due to the vaccine. When it reactivates, usually years later in adulthood, it is known as  zoster or shingles.

There are also several vaccines usually reserved for travel to specific areas of the world, occupational exposure, military service or other special circumstances. These include vaccines for anthrax, typhoid, cholera, (bacteria) and yellow fever, smallpox,and rabies (viruses). 

Diseases for which there is no vaccine

One of the most serious is malaria, caused by a parasite transmitted by infected mosquitos. Malaria is rarely a risk in northern or extreme southern areas of the world, but for the tropics, especially sub-Saharan Africa it is a major health problem. (A vaccine is being tested.)

Otherwise we all are at risk of other serious infections that we cannot yet prevent with immunization. These include

HIV-human immunodeficiency virus ,and most other sexually transmitted diseases including HSV- herpes simplex virus, gonorrhea, syphilis, and chlamydia.

HCV- Hepatitis C

Most respiratory viruses, including rhinovirus, cause of the common cold; RSV-respiratory syncytial virus and infectious mononucleosis

The Ebola virus

Borrelia, not really a bacteria, it’s a spirochete, which causes Lyme (not lime) disease

And the bacteria Staphylococcus, which causes “staph” (not staff) infections of the skin and Streptococcus, which causes “strep throat”.

If you have any questions or concerns about which vaccines you might need to protect yourself against infections, please consult your own personal physician.

Detailed information about vaccines and infectious disease  is available from the Centers for Disease Control and Prevention 

Preventing bacterial infections

  Prevention is a focus in healthcare now  and immunization has  been one of the most effective ways to prevent disease ever developed. The list of diseases that are “vaccine preventable” is long and continues to grow. Vaccine recommendations may be based on a person’s Vaccine administration may vary by Immunization protocols have  become so complex…

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Preventing bacterial infections

 

Prevention is a focus in healthcare now  and immunization has  been one of the most effective ways to prevent disease ever developed.

The list of diseases that are “vaccine preventable” is long and continues to grow.

Vaccine recommendations may be based on a person’s

  •  age,
  • gender,
  • ethnicity and
  • concurrent conditions, especially diabetes mellitus, chronic lung diseases, heart disease and  immune suppressing disorders.

Vaccine administration may vary by

  • the number of doses recommended,
  • how far apart the doses should be given, and
  • which vaccines can be administered at the same time.

Immunization protocols have  become so complex that even physicians have difficulty keeping it straight without the use of paper or digital checklists. This is one area where the Internet and EMRs (electronic medical records) can be useful.

Find out what vaccines your child needs for protection against common  infections. 

 

 

Vaccines for infections caused by bacteria

I use the name of the disease and/or the bacteria, rather than the vaccine name, since there are different brand names for the vaccines depending on the manufacturer.

So successful have these vaccines been that most young doctors have never seen a patient with these diseases (unless perhaps they specialize in infectious disease, immunology, emergency medicine or critical care). And even I, who graduated medical school in 1978, have only seen a few, and none in recent years.

Diphtheria-primarily a respiratory tract illness in young persons

Pertussis, better know as whooping cough, also a respiratory illness, which has made a comeback in recent years, apparently due to a waning of immunity

Tetanus, also called “lockjaw”– due to a toxin which may contaminate a dirty wound

Menigococcal disease, which is one of many causes of meningitis (inflammation of the brain lining), but one of the most deadly, even with treatment

Streptococcal pneumoniae disease; the vaccine is often referred to as the “pneumonia vaccine”, but the bacteria can also cause ear infections, sinusitis, meningitis and sepsis (bloodstream infection)

Haemophilus disease is similar to pneumococcal, but more of a concern in infants and children

 

Overview of Viral Diseases

Bacterial infections can be treated with antibiotics, while antiviral medications are limited. Vaccines exist for several viruses and bacteria, including influenza, MMR, and Hepatitis strains. However, diseases like malaria and HPV require additional attention. Many infections lack preventive vaccines, emphasizing the importance of consulting physicians for advice on vaccinations and disease prevention.

Aletha Cress Oglesby, M.D.'s avatar by Aletha Cress Oglesby, M.D.

 

exploring the HEART of infection control

 

Dr. Aletha