The phrase "deadly by" is not a correct or usable phrase in written English.
Instead, you could use phrases like "deadly to," "deadly for," or "deadly at." For example, "That disease can be deadly at any age."
DEADLY By Julie Chibbaro Illustrated.
Basketballs floating in fish tanks came next, followed by snorkel vests and lifeboats turned deadly by being cast in bronze.
Another disastrous ocean race, off Australia, is recounted in KNOCKDOWN: The Harrowing True Account of a Yacht Race Turned Deadly, by Martin Dugard (Pocket Books, $13.95).
Trump also made reference to recent devastating wildfires in California, which scientists say have been made more intense and deadly by climate change.
The quarantine has since been lifted, but it is an indication that the disease – identified as one of the world's most deadly by the WHO – is still out there.
The death count is the latest consequence of an escalating public health crisis: opioid addiction, now made more deadly by an influx of illicitly manufactured fentanyl and similar drugs.
Maria was the deadliest by far.
The attack was the deadliest by insurgents in nearly a year.
The latest attack was among the deadliest by Boko Haram in Niger since it began launching raids in the country in February 2015 from its stronghold in neighbouring Nigeria.
The rights group said the attack was the largest and deadliest by Boko Haram that it had analysed.
The bomb attack in Kabul was the deadliest by insurgents in Afghanistan since the Taliban were driven from power by US-led forces in 2001.
