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How Long Does SARS-CoV-2 Last on Surfaces? What We Know COVID-19

 It’s on everybody’s mind, to some extent, right now. If a surface is contaminated with the SARS-CoV-2virus, how long does it pose a risk of infection? The virus is thought to mainly spread through respiratory droplets. These are produced in a cloud when a person coughs or sneezes, or even talks. Some potentially-virus-laden droplets might end up getting breathed in by other people in the vicinity. But many of them end up landing on objects like door handles or water faucets.  When that happens, infectious disease experts refer to that door handle as a fomite. And if a person then touches the fomite while the virus is still infectious, they can then spread it to new surfaces, or actually infect themselves. Fomites aren’t just for viruses -- any type of pathogen can create fomites -- but we’re talking about viruses… obvious reasons. The good news is that SARS-CoV-2 virus particles don't last forever -- or even all that long. Eventually, the protein coat that allows the virus to actu

Top 10 leading causes of death in the US?

10. Suicide

2018 incidence: 48,344

Rate: 14.2 per 100,000 US standard population

Percentage of total deaths: 1.7%

The number of Americans who died by suicide accounted for 1.7% of the 2.8 million registered deaths. Encouragingly, the incidence of suicide did not increase from 2017. But, its rate increased by 1.4%, up from 14.0 per 100,000 in 2017 to 14.2 in 2018.

9. Kidney disease

2018 incidence: 51,386

Rate: 12.9 per 100,000 US standard population

Percentage of total death: 1.8%

Like suicide, the number of deaths from kidney disease did not change significantly from 2017, with a slight decrease in risk from 13.0 per 100,000 in 2017 to 12.9 in 2018.

8. Influenza and pneumonia

2018 incidence: 59,120

Rate: 14.9 per 100,000 US standard population

Percentage of total deaths: 2.1%

Unfortunately, deaths from influenza and pneumonia increased in 2018 and accounted for 3,450 more deaths compared with 2017. The death rate also increased 4.2%—from 14.3 per 100,000 in 2017 to 14.9 in 2018.



2018 incidence: 84,946

Rate: 21.4 per 100,000 US standard population

Percentage of total deaths: 3%

No significant changes occurred between 2017 and 2018 in the number of deaths from diabetes. Considering the rate of overweight and obesity in America, no news is good news in this respect.


6.Alzheimer disease

2018 incidence: 122,019

Rate: 30.5 per 100,000 US standard population

Percentage of total deaths: 4.3%

The death rate from Alzheimer disease decreased in 2018, down from 31.0 per 100,000 in 2017. But, the CDC has estimated that by 2060, nearly 3.3% of the entire US population—that’s 14 million people—will have Alzheimer disease or a related dementia.

5. Cerebrovascular diseases

2018 incidence: 147,810

Rate: 37.1 per 100,000 US standard population

Percentage of total deaths: 5.2%

Cerebrovascular diseases are comprised of stroke, carotid stenosis, vertebral and intracranial stenosis, aneurysm, and vascular malformation. The good news is that the rate of death from these diseases decreased from 37.6 per 100,000 in 2017 to 37.1 in 2018.

4. Chronic lower respiratory diseases

2018 incidence: 159,486

Rate: 39.7 per 100,000 US standard population

Percentage of total deaths: 5.6%

Deaths from chronic lower respiratory diseases—including chronic obstructive pulmonary disease, asthma, occupational lung disease, and pulmonary hypertension—were down slightly, from 5.7% in 2017 to 5.6% in 2019. There was also a decline in death rate, from 40.9 per 100,000 in 2017 to 39.7 in 2018.

3. Accidents/unintentional injuries

2018 incidence: 167,127

Rate: 48.0 per 100,000 US standard population

Percentage of total deaths: 5.9%

The number of deaths from unintentional injuries include those from car accidents, falls, and—importantly—drug overdoses. The death rate fell by 2.8%—from 49.4 per 100,000 in 2017 to 48.0 in 2018. This was due, in large part, to reductions in the number of deaths from drug overdoses.

2. Cancer

2018 incidence: 599,274

Rate: 149.1 per 100,000 US standard population

Percentage of total deaths: 21.1%

Although the death rate from cancer among Americans fell from 152.5 per 100,000 in 2017 to 149.1 in 2018, cancer is still the #2 killer in the United States; it’s responsible for 21.1% of all deaths.

1. Heart disease

2018 incidence: 655,381

Rate: 163.6 per 100,000 US standard population

Percentage of total deaths: 23.1%

Heart disease—most commonly caused by coronary artery and valvular diseases—is the #1 killer in the United States. It accounted for almost one-fourth of all registered deaths. The death rate from heart disease, however, fell by 0.8%, from 165.0 per 100,000 in 2017 to 163.6 in 2018.

These 2018 changes—albeit slight—are good news for Americans. Life expectancy has increased, and the age-adjusted death rate has decreased. Importantly, the number of deaths from accidental overdoses has also declined. Let’s hope the trend continued for Americans in 2019 and beyond.

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