H1N1 Flu Updates

Flu Shot
Update: May 26, 2009

H1N1: US RATES STILL SLOWING, BUT MORE FATALITIES

As previously reported, the rate of spread of the Novel-H1N1 virus appears to be slowing somewhat in the United States and Mexico, though experts see increasing rates in the Asian theater and expect cases to rise in the Southern Hemisphere as they are now entering their typical "flu season."

Completely in the realm of the expected, there are new fatalities to report both in the US and around the world. But those deaths, in relation to the total number of cases, show this flu virus to be a relatively mild strain - so far. Also, "so far," virtually all cases of fatality involve people who had underlying serious health conditions that mortally compromised their ability to fight off any strain of influenza.

The statistics for May 25, as shown this morning on the CDC web site: The US now has confirmed cases of Novel-H1N1 infection in 48 states, totalling 6,764 cases and 10 deaths. (CBS television's The Early Show reported 11 US deaths this morning; that tally will likely be displayed at the CDC site when they commit their daily updates later today.)

May 22-25 Update:

H1N1: TRANSITION PERIOD FOR GLOBAL SPREAD, OR DO STANDARD MODELS STILL APPLY?

The rate of spread for the Novel-H1N1 flu virus is slowing in the US and Mexico, while Asia sees no similar slowdown and health officials are left speculating on various possible contradictions in standard-model flu trends.

About the slowing trend in the North American Hemisphere: While typical "flu seasons" would already have ended even before this newest flu strain started its spread in the Northern Hemisphere, periods of warmest weather invariably signal the end of more typical flu seasons. As the Northern Hemisphere climate is more fully transitioning to its summer season, scientists wonder if this climatic transition is in part responsible for the recent slowing trend in the spread of the virus in this hemisphere.

Of course the Asian continent and associated island groups (including Japan, the Phillipines, etc.) also reside in the Northern Hemisphere, and they can report no such slowdown in the virus' spread at this time. Health scientists are being especially challenged to understand or predict the Novel-H1N1 virus, since its most common feature is that it apparently refuses to follow common global influenza behavior modeling.

The scientists are also closely monitoring the various countries in the Southern Hemisphere for establishment or spread of this particular flu strain, since the Southern Hemisphere is just now entering its typical flu season. For example, Australia is currently reporting eight confirmed cases on that continent as of yesterday, and other reports in the Southern Hemisphere appear similarly sparse at this time. No country on the African continent has yet been able to confirm any cases of H1N1 infection.

Another major concern relates to whether cases of this strain will diminish during the Northern Hemisphere's summer months only to resurge during the "regular" flu season starting in the north's fall months. The single greatest impact of all this uncertainty directly affects makers of anti-flu innoculations, since they are now unsure whether to create innoculations against this novel strain, or make innoculations against the more normal-trending strains as is their usual practice. Various health scientists have pointed out that these drug manufacturers don't have the resources, whether material or time, to create innoculations against this and the more normal-trending strains.

And, for innoculations to be ready in time for the next Northern Hemisphere flu season, such decisions need to be made fairly soon.

H1N1 in the United States: As of yesterday, there are now 5,764 confirmed cases in 48 states, with a ninth US death reported from Missouri.

* The extended period of these updates is due to the fact the Tribal Operations offices will be closed for the United States' Memorial Day observances.

May 21 Update:

H1N1 SPREAD SLOWING, STILL MORE FATALITIES

Today's H1N1 flu update is a mix of apparent contradictions. Even while a high official in the World Health Organization said they would raise the pandemic alert level to "6" - a full-on pandemic - if the disease's spread continues at similar levels in another week, the infection rate in the US appears to be slowing somewhat.

That the disease's spread appears slowing offers no solace in the fact that as many as four more US deaths are now attributed to this disease. The Centers for Disease Control's web site only show eight flu-related deaths in the US (up two from the day before), but it was reported on a news segment of CBS' The Early Show this morning there are now 10 US flu-related deaths. There is very likely no conflict between CDC numbers and CBS's report, since the CDC updates the statistics on its web site later in the day and the data appearing there right now are actually dated Tuesday, May 20.

Michigan's Isabella County, adjacent to the Saginaw Chippewa Indian Tribe's Isabella Reservation, is also now reporting its first confirmed case of Novel-H1N1 infection, as reported by the Central Michigan District Health Department. According to local news reporting, authorities are no longer recommending that schools close to prevent spread of the disease, since it appears no worse than typical flu-season strains but, as is always the case with any flu variant, the youngest, oldest and chronically ill are always at highest risk and should take the greatest precautions.

The stats, as reported by the CDC as of this update: 5,710 reported cases in 48 states with 8 (10?) confirmed fatalities.

May 20 Update:

ANOTHER DEATH IN ARIZONA

No human against human war has ever claimed as many lives as this never ending struggle between humans and the very smallest life forms on this planet. The current battle, pitting the Novel-H1N1 influenza virus against humans (and some swine and even a few birds), has claimed another human casualty in Arizona.

That battle damage can be prevented by measures as simple as habitual hand washing is something that can not be over-emphasized. As has been pointed out in previous reports, there is a fair amount of prevention information available through the Centers for Disease Control web site (the link to that site if found on this page).

The following list is taken directly from their site:

What You Can Do to Stay Healthy

  • Stay informed. [The CDC] web site will be updated regularly as information becomes available.
  • Influenza is thought to spread mainly person-to-person through coughing or sneezing of infected people.
  • Take everyday actions to stay healthy.
    • Cover your nose and mouth with a tissue when you cough or sneeze. Throw the tissue in the trash after you use it.
    • Wash your hands often with soap and water, especially after you cough or sneeze. Alcohol-based hands cleaners are also effective.
    • Avoid touching your eyes, nose or mouth. Germs spread that way.
    • Stay home if you get sick. CDC recommends that you stay home from work or school and limit contact with others to keep from infecting them.
  • Follow public health advice regarding school closures, avoiding crowds and other social distancing measures.
  • Find healthy ways to deal with stress and anxiety.

Daily statistics: There are, as of yesterday's CDC tally, 5,469 confirmed H1N1 cases in 48 of the 50 United States. The total US death toll now stands at six.

May 19 Update:

H1N1 CLAIMS 1 MORE LIFE IN TEXAS

One thing is certain: Spread of this Novel-H1N1 flu outbreak is not slowing down - and it has claimed one more life in Texas (now totaling 5 US deaths). However, the newly reported 5th death of a Texas man suffering an underlying heart condition actually occurred several days before. It was only confirmed last Friday that he was sick with the H1N1 virus, and it was the presence of this additional illness that mortally pushed his health past the brink.

According to the World Health Organization, the H1N1 flu has so far killed 65 people worldwide, including 60 in Mexico, and sickened more than 6,500 people in 33 countries. By comparison, outbreaks of seasonal influenza kill as many as 500,000 people worldwide each year. Two to three million more people suffer severe illness from influenza.

Combining the  fact that mild cases of this new strain appear to be experienced without accompanying fever (see May 18 update below) means this outbreak may already be somewhat-to-very under-reported. Still, health officials urge the public not to feel complacent because of the apparent mildness of this strain so far, and to continue practicing the preventive measure of frequent hand-washing and limiting exposure to those who may already be affected by this virus.

The simple fact that this strain is appearing at a very unusual time for flu outbreaks adds a high level of uncertainty about its potential impact down the road. Whether it will go into a period of dormancy or not, only to re-emerge during a more normal "flu season," or whether it will linger are questions to which medical care professionals and scientists are attempting to divine answers. And the answers to such questions will directly impact what types of flu vaccines will be produced and when they will be most needed by the public as we move forward through this contagion.

Daily Stats: According to the CDC, as of yesterday the US now has 5,123 confirmed cases in 48 states, and the 5 deaths that were mentioned above.

May 18 Update:

H1N1 NOT ALWAYS ACCOMPANIED BY FEVER

An noted in a report no NPR's Morning Edition this morning, there are a few things we are learning from the current outbreak of Novel-H1N1 influenza (note: The transcript of this radio report is available on the NPR web site). One section of this report states:

NPR MORNING EDITION, MAY 18, 2009 "SWINE FLU: HOW WORRIED SHOULD WE BE?" by Richard Knox

Dr. Richard Wenzel of Virginia Commonwealth University in Richmond came back from Mexico City last week with a troubling bit of news. He consulted with fellow specialists in infectious disease at Mexico's leading respiratory disease hospital.

"A third of the patients with the milder sort of disease - relatively so, but [those who] got admitted - had no fever on admission," Wenzel says. "And about half of those never developed a fever. And that's a surprise for those of us who think that flu always causes fever.

And, what that means is this particular strain of flu may be under-reported or under-diagnosed. People could go to work or school feeling achy, a bit off, snuffly, sneezy, congested, etc., and without the presence of a fever they may pass it off as allergies, changes in the weather, having a cold or other maladies. Problems arise if they are actually suffering a mild form of this flu and spreading it because they feel complacent about the symptoms.

However, the overall report suggests that - so far - the Novel-H1N1 flu virus is not making people any more sick than any other common variety flu. The thing that grabs the most attention of the scientists is how this flu appeared at an odd time compared to the usual rounds made by such viruses.

Simple Stats Update:

There are now 4,714 cases of Novel-H1N1 flu confirmed-or-probable in 47 states (Michigan reporting 142 cases) and with the sad addition of one more death (a total of 4 so far; 2 in Texas, 1 in Washington state and 1 in Arizona).

The CDC now also offers exhaustive (and somewhat dense) statistical weekly analyses of this ongoing outbreak on their web site.