Friday, March 27, 2020

Influenza Pandemic 1918 v 2019


Flu cases 2019-2020 include Regular Flu A&B plus Coronavirus 19. I expect cases and deaths from A&B to be triple the number of cases and deaths from Covid19.

Flu                      Cases        Deaths   
Influenza A&B    3-5 million   290-650 thousand est.
Coronavirus 19   1 million     100 thousand est.

The influenza pandemic 1917-1918 was the worst viral infection in world history. Globally, 500 million, one third of the population, were infected and 50 million died.  In the US, 675 thousand were infected.

Coronavirus19 2019-2020 is equally contagious and deadly, but we now have the ability to control its spread and affect recovery. Globally, 500 thousand are infected, over 20 thousand have died and 120 thousand have recovered.  In the US, 70 thousand are infected and over 1 thousand have died.  

Regular Flu, Influenza A&B, 2019-2020 is estimated to produce 3-5 million cases and 290-650 thousand deaths.

The COV19 Flu is a viral infection. It is more contagious and more deadly than Influenza A&B, the “regular flu” that appears each year in the Fall and Winter and retreats in the Spring and Summer. The “regular flu” affects 30 million to 60 million in the US each year producing deaths of 20,000 to 50,000 each year.  The COV19 virus has entered the fray and has already added 20,000 deaths. This year’s combined Flu Festival is likely to kill over 100,000.

The typical treatment for the Flu is anti-biotics and steroids, but the treatment for the COV19 virus is being augmented by  
Hydroxychloroquine and other drugs.  Mylan is increasing production in its West Virginia manufacturing plant to produce 50 million Hydroxychloroquine tablets for 1.5 million patients.

The panic over adding COV19 to this flu season is informed by past history and current information about COV19. The panic has caused us to focus on how to avoid contact with COV19 and it’s the same approach we need to continue to use from here on out to avoid the “regular flu”.

Our worst influenza pandemic occurred from 1917 to 1919, before we had invented the electron microscope and couldn’t even see viruses.  We treated this influenza like it was a bacteria, we failed and it ran its course. 

When the 1918-1919 pandemic ended, doctors drafted the rules of “social distancing” and “hand sanitation”.  When COV19 hit the US this was our only sure defense against it spreading. 

We had invented penicillin in 1928 and deployed it in 1940.
This allowed the development of anti-biotics, but our “flu seasons” continued. See article below.

The 1918 influenza pandemic was the most severe pandemic in recent history. It was caused by an H1N1 virus with genes of avian origin. Although there is not universal consensus regarding where the virus originated, it spread worldwide during 1918-1919.  In the United States, it was first identified in military personnel in spring 1918. It is estimated that about 500 million people or one-third of the world’s population became infected with this virus. The number of deaths was estimated to be at least 50 million worldwide with about 675,000 cases occurring in the United States.

Mortality was high in people younger than 5 years old, 20-40 years old, and 65 years and older. The high mortality in healthy people, including those in the 20-40 year age group, was a unique feature of this pandemic. While the 1918 H1N1 virus has been synthesized and evaluated, the properties that made it so devastating are not well understood. With no vaccine to protect against influenza infection and no antibiotics to treat secondary bacterial infections that can be associated with influenza infections, control efforts worldwide were limited to non-pharmaceutical interventions such as isolation, quarantine, good personal hygiene, use of disinfectants, and limitations of public gatherings, which were applied unevenly.


Leading Causes of Death in US

Cause of Death 2018     1900-1940
Heart Disease  655,381    724,859
Cancer             599,274    541,532
Injury               167,127       97,835
Respiratory     159,486     112,584   Flu
Stroke             147,810     158,448
Alzheimer’s     122,019     Dementia
Diabetes           84,946        64,751
Pneumonia       59,120     91,871  Flu
Nephritis           51,386     26,182 Kidney Inflammation
Suicide             44,965      30,575
Septicemia       38,940      Bacterial Infection
Liver Cirrhosis  38,170      25,192
Other                                463,427
Total           2,168,624     2,337,256


Medical Science has advanced but Medical Practice is “trial and error”.

Norb Leahy, Dunwoody GA Tea Party Leader

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