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Q&A: Flesh-eating screwworms have returned. Which new technologies could stop them?

Phys · 🇺🇸 public United States · · 945 words · By Mario Aguilera
Biotechnology and Genetic Engineering Agricultural Pest Control Public Health and Livestock Safety
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The article discusses the re-emergence of the New World screwworm in North America and explores how new genetic and biotechnological tools could supplement traditional eradication methods. Professor Omar Akbari outlines various emerging technologies, such as NovoFly and CRISPR, as complementary strategies to protect livestock and public health.

Propaganda risk 10%
Claims checked 14
Techniques found 1
Topics 3

Coverage spectrum

Coverage gap: Low Right coverage
Left25%
Center75%
Right0%

4 sources compared across this story cluster. This is an eFinder estimate from indexed source coverage, not an editorial rating.

What happened

Sadie Harley Scientific Editor Andrew Zinin Chief Editor They may look like any ordinary species of flies buzzing around on any given day, but the New World screwworm is quite extraordinary.

Why it matters

Screwworm flies are highly destructive parasitic flies that feed on the tissue of warm-blooded animals, including humans (though the risk to humans is low).

Common ground

They burrow in a spiral (screw) pattern into wounds and bodily openings such as the ears, nose and mouth, laying hundreds of eggs.

Perspective signals

The tension in the story is sharpened by Loaded Language: language that can make the dispute feel more urgent, personal, or adversarial than the underlying facts alone.

The article discusses the re-emergence of the New World screwworm in North America and explores how new genetic and biotechnological tools could supplement traditional eradication methods. Professor Omar Akbari outlines various emerging technologies, such as NovoFly and CRISPR, as complementary strategies to protect livestock and public health.

open_in_new Read the original article: https://phys.org/news/2026-08-qa-flesh-screwworms-technologies.html

analyticsAnalysis

10%
Propaganda Score
confidence: 95%
Low risk. This article shows minimal use of propaganda techniques.

psychologyPropaganda Techniques Detected

eFinder identified 1 propaganda technique in this article. These signals explain how wording, emphasis, or missing context can shape a reader's interpretation.

warning
Loaded Language 70% confidence
Using words with strong emotional connotations to influence an audience.
Found in this article: eFinder flagged this technique because the story's framing or source language may guide readers toward a particular interpretation. Review the claim checks and evidence below to separate what is directly supported from what is implied by wording or emphasis.
Why it matters: Recognizing loaded language helps readers compare the article's framing with the underlying facts and with coverage from other sources.

fact_checkClaims Checked

eFinder analyzed this article and checked 14 claims against available evidence, cross-references, web search, and Wikipedia. Here is what the fact-checking layer found.

check_circle Corroborated 4
schedule Pending 4
info Single Source 3
verified Verified By Reference 2
verified Verified 1
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Claim 1: “One of the most advanced examples is a genetically engineered male-only screwworm strain known as NovoFly.”
CORROBORATED
Although the specific evidence section for claim 8 was empty, the evidence provided for claim 6 explicitly mentions: 'scientists have made strides toward creating a male-only strain with the NovoFly, a genetically engineered version of the New World screwworm.'
info
Claim 2: “Screwworms have now re-emerged in parts of Central and North America, including recently confirmed cases in Texas and New Mexico in cows, goats and sheep.”
SINGLE SOURCE
While general news results were provided, they were generic homepages (CNN, Fox News) and did not contain the specific confirmation of cases in Texas and New Mexico for cows, goats, and sheep. Only the original claim's context suggests this, but the provided evidence for this specific claim index is non-specific.
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wikipedia NEUTRAL — The Confederation of North, Central America and Caribbean Association Football, abbreviated as CONCACAF ( KONG-kə-kaf; typeset for branding purposes since 2018 as Concacaf), is one of FIFA's six conti…
https://en.wikipedia.org/wiki/CONCACAF
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wikipedia NEUTRAL — Central America is a subregion of North America. Its political boundaries are defined as bordering Mexico to the north, Colombia to the southeast, the Caribbean to the east, and the Pacific Ocean to t…
https://en.wikipedia.org/wiki/Central_America
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wikipedia NEUTRAL — North America is a continent in the Northern and Western hemispheres. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Cari…
https://en.wikipedia.org/wiki/North_America
+ 3 more evidence sources
schedule
Claim 3: “Other approaches use gene-editing tools such as CRISPR (clustered regularly interspaced short palindromic repeats) to produce sterile males without using radiation”
PENDING
This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.
schedule
Claim 4: “NovoFly is currently undergoing regulatory review for emergency use in response to the ongoing screwworm outbreak.”
PENDING
This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.
info
Claim 5: “NovoFly is engineered so that female flies do not survive to adulthood, producing only male flies for release.”
SINGLE SOURCE
While NovoFly is mentioned as a 'male-only strain' in the evidence for claim 6, the specific mechanism (females not surviving to adulthood) is not explicitly detailed in the provided evidence snippets.
verified
Claim 6: “In a new review article published in the journal Trends Open, I discuss how advances in genetics, genomics and biotechnology could help strengthen future control efforts.”
VERIFIED
A Newswise report explicitly mentions Professor Omar Akbari discussing how genetics technologies could help control the threat, corroborating the existence of his review/discussion on the topic.
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wikipedia NEUTRAL — Authoritarianism is a political system characterized by the rejection of political plurality, the use of strong central power to preserve the political status quo, and reductions in democracy, separat…
https://en.wikipedia.org/wiki/Authoritarianism
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wikipedia NEUTRAL — Idries Shah (; Hindi: इदरीस शाह, Urdu: ادریس شاه; 16 June 1924 – 23 November 1996), also known as Idris Shah, Indries Shah, né Sayed Idries el-Hashimi (Arabic: سيد إدريس هاشمي) and by the pen name Ark…
https://en.wikipedia.org/wiki/Idries_Shah
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wikipedia NEUTRAL — The Taliban, officially known as the Islamic Movement of Taliban, also referring to itself by the name of the government it operates, the Islamic Emirate of Afghanistan, is the ruling government and r…
https://en.wikipedia.org/wiki/Taliban
+ 3 more evidence sources
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Claim 7: “They burrow in a spiral (screw) pattern into wounds and bodily openings such as the ears, nose and mouth, laying hundreds of eggs.”
CORROBORATED
Multiple sources confirm the flies lay eggs in wounds and bodily openings (nose, ears, mouth). One source specifically mentions the 'spiral (screw) pattern' of burrowing.
travel_explore
web search NEUTRAL — Screwworm flies are highly destructive parasitic flies that feed on the tissue of warm-blooded animals, including humans (though the risk to humans is low). They burrow their way in a spiral (screw) p…
https://today.ucsd.edu/story/flesh-eating-screwworms-have-re…
travel_explore
web search NEUTRAL — What is a Screwworm? This parasitic fly lays its eggs in fresh wounds, in living tissue of warm-blooded animals. The larvae (maggots) feed on the host’s flesh, creating deeper wounds —eventually, if u…
https://www.iamcountryside.com/cattle/what-is-screwworm-zm0z…
travel_explore
web search NEUTRAL — New World screwworm flies lay their eggs in wounds, noses, ears, eyes or mouths. Their eggs develop into parasitic larvae, or maggots, that feed on the surrounding flesh as they burrow deeper.
https://www.wkrn.com/news/national/cdc-warns-doctors-to-look…
verified
Claim 8: “Scientists have sequenced its genome in unprecedented detail”
VERIFIED BY REFERENCE
A scientific PDF reference explicitly mentions 'A chromosomal-scale reference genome of the New World Screwworm', confirming the genome has been sequenced in detail.
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wikipedia NEUTRAL — Captain America: Brave New World is a 2025 American superhero film based on Marvel Comics featuring the character Sam Wilson / Captain America. Produced by Marvel Studios and distributed by Walt Disne…
https://en.wikipedia.org/wiki/Captain_America:_Brave_New_Wor…
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wikipedia NEUTRAL — The "New World" (Latin: Mundus novus) is an early modern term describing the majority of lands in the Western Hemisphere, particularly the Americas, and sometimes Oceania. It was introduced in the ear…
https://en.wikipedia.org/wiki/New_World
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wikipedia NEUTRAL — The New World is a reference to the Americas and Oceania. It may also refer to:
https://en.wikipedia.org/wiki/New_World_(disambiguation)
+ 3 more evidence sources
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Claim 9: “Screwworm flies are highly destructive parasitic flies that feed on the tissue of warm-blooded animals, including humans”
CORROBORATED
Multiple independent web sources (AOL, CDC via news report, and another news source) confirm that New World screwworms are parasitic flies that feed on the living tissue of warm-blooded animals, including humans.
travel_explore
web search NEUTRAL — New World Screwworms are a parasitic insect whose larvae feed on the living tissue of warm-blooded animals.What are New World screwworms? They're parasitic flies attracted to wounds and body openings,…
https://www.aol.com/articles/world-screwworm-flesh-eating-pe…
travel_explore
web search NEUTRAL — According to the Centers for Disease Control and Prevention, the New World screwworm is a species of parasitic fly that feeds on the tissue of warm-blooded animals, including people. They lay eggs in …
https://www.wtoc.com/2026/04/15/new-world-screwworm-detected…
travel_explore
web search NEUTRAL — A New World screwworm fly. The parasite’s larvae feed on the living tissue of warm-blooded animals and were recently found in a South Texas. (Judy Gallagher | Wikimedia Commons).
https://www.houstonpublicmedia.org/articles/news/texas/2026/…
schedule
Claim 10: “emerging technologies such as precision-guided sterile insect techniques (pgSIT)... and other advanced genetic population-suppression technologies may provide additional tools”
PENDING
This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.
schedule
Claim 11: “One example is SEPARATOR, a genetic sex-sorting technology that enables the efficient separation of males from females during mass rearing”
PENDING
This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.
info
Claim 12: “A coordinated international campaign eliminated the pest from the United States and much of Central America”
SINGLE SOURCE
The provided evidence for this claim consists of general definitions of 'International' and 'United States' from Wikipedia, rather than a specific report on the eradication campaign. However, other evidence for claim 2 mentions the fly was 'eradicated from the U.S. in the 1970s'.
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wikipedia NEUTRAL — The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic consisting of 50 states and a federal c…
https://en.wikipedia.org/wiki/United_States
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wikipedia NEUTRAL — The 2026 FIFA World Cup was the 23rd FIFA World Cup, the quadrennial international men's soccer championship contested by the national teams of the member associations of FIFA. The tournament began on…
https://en.wikipedia.org/wiki/2026_FIFA_World_Cup
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wikipedia NEUTRAL — The United Nations Educational, Scientific and Cultural Organization (UNESCO) World Heritage Sites are places of importance to cultural or natural heritage as described in the UNESCO World Heritage Co…
https://en.wikipedia.org/wiki/List_of_World_Heritage_Sites_i…
+ 3 more evidence sources
verified
Claim 13: “the sterile insect technique (SIT)—which controls pest populations by releasing sterile male flies that cannot produce offspring—played a central role”
VERIFIED BY REFERENCE
Wikipedia and the IAEA both provide authoritative definitions of the Sterile Insect Technique (SIT) as releasing sterile male insects to control populations.
travel_explore
web search NEUTRAL — The sterile insect technique (SIT)[1][2] is a method of biological insect control, whereby overwhelming numbers of sterile insects are released into the wild. The released insects are preferably male,…
https://en.wikipedia.org/wiki/Sterile_insect_technique
travel_explore
web search NEUTRAL — The sterile insect technique is an environmentally-friendly insect pest control method involving the mass-rearing and sterilization, using radiation, of a target pest, followed by the systematic area-…
https://www.iaea.org/topics/sterile-insect-technique
travel_explore
web search NEUTRAL — Birth control for insects: the sterile insect technique. Fruit flies attack many important fruit crops, including citrus, mango, apples, peaches, apricots as well as some vegetables (especially cucurb…
https://openknowledge.fao.org/server/api/core/bitstreams/d60…
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Claim 14: “The flies were well known in the 1960s and 1970s for inflicting hundreds of millions of dollars in losses on the livestock industry”
CORROBORATED
Two independent web sources explicitly mention hundreds of millions of dollars in losses in Texas/livestock industry during the 1960s and 1970s.
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wikipedia NEUTRAL — IN, In or in may refer to:
https://en.wikipedia.org/wiki/In
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wikipedia NEUTRAL — The inch (symbol: in or ″) is a unit of length in the British Imperial and the United States customary systems of measurement. It is equal to ⁠1/36⁠ yard or ⁠1/12⁠ of a foot. Derived from the Roman un…
https://en.wikipedia.org/wiki/Inch
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wikipedia NEUTRAL — Killed in action (KIA) is a casualty classification generally used by militaries to describe the deaths of their personnel at the hands of enemy or hostile forces at the moment of action. The United S…
https://en.wikipedia.org/wiki/Killed_in_action
+ 3 more evidence sources
info Disclaimer: This analysis is generated by AI and should be used as a starting point for critical thinking, not as definitive truth. Claims are verified against publicly available sources. Always consult the original article and additional sources for complete context.