Sunday, February 25, 2018

H3N2

We can speculate that human influenza (the flu) has bedeviled the human race throughout history – although a lack of accurate records and similarity to other respiratory diseases make the data difficult to interpret.  The classic symptoms of the flu were described by Hippocrates as early as 2,400 years ago. 

The earliest record of an influenza pandemic was of an outbreak in 1580 which started in Russia and spread thru North Africa to Europe.  In Rome over 8,000 people were killed and several Spanish cities were largely depopulated.  A century ago the most famous and lethal outbreak was the 1918 flu pandemic – also known as the Spanish Flu.  Lasting from 1918 to 1919 it is estimated to have killed 50 to 100 million people. 

The flu is still around today and with regular vaccinations society has achieved much progress in lessening the impact of pandemics.  Nevertheless, the flu should never be taken lightly.  It can be fatal to very young children, the elderly or among those who have compromised immune systems or other preexisting conditions. 

Last week I was slammed by a nasty strain of the flu (likely H3N2) that was not prevented by my yearly flu vaccination.  Each year, there are usually a few different strains of the flu virus circulating around and as a consequence your flu shot may not be as effective.  In 2018 we’re seeing more of the Influenza A-H3N2 than any other strain and any year in which this is the dominant strain tends to be worse than usual.  This is the worst year in a decade. 

The good news is that nowadays, we have antivirals, acetaminophen, fortified sports drinks and over the counter extended-release medications to loosen mucus to moderate symptoms and avoid complications.   Such things didn’t exist a hundred years ago.  Yet individuals still die from influenza and complications like pneumonia.   So wash your hands regularly, cover your coughs and sneezes and if you have sudden onset of cough, sore throat, runny or stuffy nose, muscle or body aches, headaches and fatigue seek medical help.

Raising a toast to Tamiflu, Mucinex, Tylenol and enough Gatorade to float a boat.

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