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Measles Resurgence in Florida: Understanding the Risks, Prevention, and Cost–Benefit of Vaccination
Recent measles cases in Florida underscore how quickly this highly contagious virus can spread when vaccination rates decline. Measles carries significant risks including pneumonia and encephalitis, and outbreaks impose substantial public health costs. The MMR vaccine remains a highly effective and economically sound preventive strategy that protects individuals and vulnerable communities.

David Stephen Klein, MD FACA FACPM
5 days ago5 min read


Influenza A and B Outbreaks: Why the Flu Season Comes in Waves
This year’s influenza season has followed a familiar clinical pattern, with an early surge of Influenza A infections followed by a later rise in Influenza B cases. While Influenza A is often associated with more severe illness and higher early hospitalization rates, Influenza B can extend the flu season and cause significant disease, particularly in children and older adults. Understanding this progression helps explain why flu activity persists later into the season and unde

David S. Klein, MD FACA FACPM
Jan 153 min read


Influenza Is Rising — COVID Is Still Circulating. Test Frequently
Influenza activity is rising as respiratory virus season accelerates, while COVID-19 continues to circulate at the same time. Because these two viruses often cause nearly identical early symptoms—fever, body aches, fatigue, sore throat, and cough—timely testing has become essential. The article emphasizes the importance of having combined at-home influenza and COVID tests readily available and using them immediately at symptom onset, rather than waiting several days.
Early i

David S. Klein, MD FACA FACPM
Jan 54 min read


Lactoferrin Containing Colostrum: Targeted Support for Sleep, Immunity, and Respiratory Health
Lactoferrin-rich colostrum occupies a unique niche at the intersection of mucosal immunity, systemic inflammatory control, and sleep regulation. By combining the broad matrix of colostrum with the targeted antiviral, antibacterial, and immunomodulatory activity of lactoferrin, these preparations can reduce the burden of upper respiratory infections, support resilient immune function, and modestly improve sleep quality in selected populations. As with any therapeutic nutrient,

David S. Klein, MD FACA FACPM
Dec 1, 20256 min read


The Ideal Bedroom Temperature for a Restful Night's Sleep
Sleep is one of the most powerful tools we have for health. By keeping your bedroom in the 60–67°F range, you give your body the environment it needs to achieve restorative rest. Simple adjustments to your room’s temperature, bedding, and clothing can lead to profound improvements in sleep quality and overall well-being

David S. Klein, MD FACA FACPM
Oct 1, 20254 min read


An Unexplored Connection: The Impact of Elevated Uric Acid Levels on Atrial Fibrillation Development
Atrial fibrillation (AF) is a common form of irregular heartbeat that can lead to severe complications, including stroke and heart...

David S. Klein, MD FACA FACPM
Apr 18, 20258 min read


Adult Mumps! You are probably at risk of re-infection: Understanding Adult Mumps and the Potential Complications including Infertility
Adult Mumps: Understanding your vulnerability and consequences of getting Mumps as an Adult.

David S. Klein, MD FACA FACPM
Mar 21, 20254 min read


Unlocking the Power of D-Mannose: A Comprehensive Look at Its Role in Treatment and Prevention of Urinary Tract Infections
D-Mannose is a wonder supplement for persons suffering from Urinary Tract Infections. For those with recurrent UTI's it is life changing.

David S. Klein, MD FACA FACPM
Feb 17, 20258 min read


Be Aware of the Potential Risks of Pertussis Infection. Whooping cough, Knowing the Enemy. The 100-day Cough. Part II
A little extra information on whooping cough. The more you know, the better and safer you and your family will be

David S. Klein, MD FACA FACPM
Jan 21, 20256 min read


Are Recent Influenza Developments Mimicking Another Covid-19 Event? Stay Informed and Ready for Any Possibilities. Treatment and Prevention
Avian Influenza, Bird Flu and other Influena infecections are now beginning to rise. Be aware, be prepared for this deadly Flu

David S. Klein, MD FACA FACPM
Jan 2, 202511 min read
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