Bat Flash! Washington Post Exaggerates Disease Risk from Bats

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Merlin Tuttle’s Response
1/8/19

Lena Sun’s article, “On a Bat’s Wing and a Prayer,” in the December 13, 2018 edition of The Washington Post, though well intended, contains misinformation that can threaten both conservation and public health. It leads with two false premises: bats are “some of the most dangerous animals in the world” and the rare Marburg virus is an important threat to world health. (1)

This basic discovery was covered by several news media, each with a slightly different slant. We responded to this one because it contained the worst misrepresentations. It was the only one seen that claimed bats to be “some of the most dangerous animals in the world” in addition to exaggerating the seriousness of its threat to world health.

Since its discovery in 1967, Marburg virus has caused a dozen outbreaks, killing fewer than 400 people. All the so-called “emerging diseases” speculated to be associated with bats worldwide, have killed fewer than 20,000 people in the past 40 years.

By comparison, HIV from chimpanzees has killed more than 39 million people, (2) yet these more popular animals consistently escape being labeled as dangerous.  Among other viral killers in Africa, the World Health Organization reports more than 70,000 children die annually from vaccine-preventable roto virus infections. (3) It also warns of geometric growth in obesity, that according to the National Institutes of Health causes 300,000 preventable deaths annually in the U.S. alone. (4) And by extremely conservative estimate, the U.S. Centers for Disease Control and Prevention reports more than 23,000 Americans die annually from antibiotic-resistant bacterial infections. (5)

So why are we focusing limited public health resources disproportionately on the rarest threats? And why are rare risks from bats often exaggerated? The answers are simple. Bats are little known, widely feared, easy to sample, and have few defenders. Also, new viruses can be found wherever we look. These combined facts make bats uniquely vulnerable to a seemingly perfect storm.  Speculation linking them to equally little known, but scary viruses has proven extremely lucrative in gaining unprecedentedly large grants and media readership, while diverting limited public health funds from far higher priorities. (6) (7)

Historically, bats have one of our planet’s finest track records of living safely with humans. Millions live in cities from America to Africa, Asia, and Australia, and have not caused even one of the world’s great pandemics. Diseases associated with bats are easily avoidable, mostly by simply not handling them. (7) Until more is known about Marburg, African caves where the virus may exist should be avoided.

For those visiting Africa, risks from mosquito-transmitted malaria or dog-transmitted rabies are orders of magnitude higher than those from any of the so-called “emerging,” but ancient, diseases speculated to be associated with bats. Our real fears should focus on preventing further loss of these already alarmingly declining, but ecologically and economically essential animals.(7)

TAKE ACTION!

Our combined voices can make a difference. Choose any or all means of contact to reach out to The Washington Post editors and author to politely share your opinion in your own words. Editors do take notice. Remember, your response can be very simple such as, “I don’t appreciate exaggerated speculation that creates needless fear of bats.” Editors just need to know you like or dislike an article in order for you to have impact. It’s numbers that count. Bats need all of you!

Egyptian fruit bats (Rousettus aegyptiacus), the subject of this Post article, are key pollinators and seed dispersers. Single cave-dwelling colonies can service large areas. This one belonged to a colony of 50,000 in Kenya and is pollinating a baobab flower. Baobab fruits sell for a billion dollars annually as a rich source of natural vitamins.

Bibliography

  1. Sun, Lena H. On a Bat’s Wing and a Prayer. The Washington Post. [Online] December 13, 2018. https://www.washingtonpost.com/news/national/wp/2018/12/13/feature/these-bats-carry-the-lethal-marburg-virus-and-scientists-are-tracking-them-to-try-to-stop-its-spread/?noredirect=on&utm_term=.0ed7e1d53a54.
  2. WHO Global Health Observatory (GHO) data. WHO. [Online] 2015. https://www.who.int/gho/hiv/en/.
  3. Immunization, Vaccines and Biologicals. WHO. [Online] 2016. https://www.who.int/immunization/monitoring_surveillance/burden/estimates/rotavirus/en/.
  4. Obesity: Facts, Figures, Guidelines. West Virginia Department of Health and Human Resources. [Online] 1999. https://www.wvdhhr.org/bph/oehp/obesity/mortality.htm.
  5. Antibiotic/Antimicrobial Resistance: Biggest Threats and Data. Center for Disease Control and Prevention. [Online] 2013. https://www.cdc.gov/drugresistance/biggest_threats.html?CDC_AA_refVal=https%3A%2F%2Fwww.cdc.gov%2Fdrugresistance%2Fthreat-report-2013%2Findex.html.
  6. Fear of Bats and its Consequences. Tuttle, Merlin. 1, s.l. : Journal of Bat Research & Conservation, 2017, Vol. 10.
  7. Tuttle, Merlin. Give Bats a Break. Issues in Science and Technology. Spring 2017.