The phrase "a particularly deadly" is correct and usable in written English.
It can be used to describe something that is especially lethal or harmful in a specific context, such as discussing diseases, weapons, or situations.
Example: "The outbreak of the virus was alarming, as it was a particularly deadly strain that affected vulnerable populations."
Alternatives: "an especially lethal" or "a notably fatal".
Even as the numbers were announced, a particularly deadly roadside bombing left 15 civilians dead in southern Afghanistan, among them 8 small children and 4 women.
Even so, experts say that obtaining a particularly deadly strain can be very difficult, and creating a potent weapon even harder.
More than 10 years ago, scientists discovered that mutations in a gene called BRCA1 lead to a particularly deadly type of breast cancer.
The report identifies the bacteria as Clostridium perfringens, and says genetic tests found a particularly deadly bacterial toxin, epsilon toxin, that most likely came from shellfish.
There were at least three other bombings in the capital on Thursday, including an explosively formed projectile, a particularly deadly roadside bomb made with Iranian technology.
In a particularly deadly area of central Diyala known as "the breadbasket," soldiers also discovered an underground bunker system that included a bomb-making workshop and living quarters.
And except for ground beef there is no testing at all for E. coli 0157 H7, a bacterium particularly deadly to children that has been responsible for outbreaks from foods ranging from ground beef to alfalfa sprouts.
It was the deadliest single tornado in more than half a century, and it adds to a season of particularly deadly tornadoes.
And powerful cyclones in the Bay of Bengal have a history of being particularly deadly because the geography funnels the storms into some of the most densely populated and poorest regions in the world.
It is a role he played with particularly deadly effect in his incisive passes to Andriy Shevchenko - before the Ukrainian left Milan for Chelsea in an ill-fated "big money" deal in 2006.
Single-deck blackjack games were king back then and my skills were particularly deadly against a 52-card pack.
