Robert Hart, Forbes Staff

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160,000 Unvaccinated Americans Died From Covid-19 Since June — Shots Could Have Saved Them, Study Finds

Covid-19 was the third leading cause of death in November, after cancer and heart disease.

Pfizer Shot Just 33% Effective Against Omicron Infection, But Largely Prevents Severe Disease, South Africa Study Finds

The preliminary findings suggest a big drop in protection against infection with omicron but strong (70%) protection against hospitalization.

First Person Dies From Omicron Covid Variant In U.K.

The U.K. health secretary said at least 10 people were in hospital with the variant, which experts believe may cause a milder form of Covid-19 but can evade immunity and spread rapidly.

U.S. Surpasses 800,000 Covid-19 Deaths — These 5 States Have The Highest Fatality Rates

Some of the least vaccinated states—including Alabama, Mississippi and Louisiana—have some of the country’s highest death tolls.

Early Reports From U.K., Norway, South Africa Suggest Omicron Variant Is More Transmissible But Causes Milder Covid-19

Experts warn it is too early to draw firm conclusions on the matter.

Here’s How Covid-19 Vaccine Makers Plan To Tackle Omicron

Some of the world’s biggest producers of Covid-19 vaccines are divided over whether the shots protect against omicron, while new, variant-specific vaccines are already being developed.

Viagra Use May Reduce Risk Of Getting Alzheimer’s By Nearly 70%, Study Suggests

Researchers say the drug, used to treat erectile dysfunction and high blood pressure, should be studied as a possible Alzheimer’s treatment.

Italy’s Unvaccinated Face More Restrictions Ahead Of Holidays As Covid-19 Cases Rise

Italy, which has one of the highest vaccination rates in the world, will require proof of vaccination or recovery to enter many public spaces and a negative test to use public transport.

Germany Announces Lockdown For Unvaccinated And Could Soon Make Shots Compulsory

A nationwide vaccine mandate could also come into force at the end of February, pending parliamentary approval.

Previous Covid Infection May Not Protect Against Omicron, Scientist Warns, As Data Suggests Variant Is Overtaking Delta In South Africa

Early data suggests the variant can also get around some of the immunity from vaccines, though they still appear to protect against serious illness and death.