Neurotoxin?

HAVANA (Reuters) – Fumigation against mosquitoes in Cuba and not “sonic attacks” may have caused some 40 U.S. and Canadian diplomats and family members in Havana to fall ill, according to a new study commissioned by the Canadian government.

The incidents took place from late 2016 into 2018, causing the administration of U.S. President Donald Trump to charge that diplomats were attacked by some sort of secret weapon. Canada has refrained from such charges.

The United States in 2017 reduced its embassy staff to a minimum and Canada followed more recently, citing the incidents and the danger posed to staff from what has become known as the “Havana Syndrome.”

Various scientific studies have yet to identify the cause of the diplomats’ cognitive ailments, ranging from dizziness and blurred vision to memory loss and difficulty concentrating.

The Canadian study by a team of researchers affiliated with the Brain Repair Centre at Dalhousie University and the Nova Scotia Health Authority studied Canadian victims and even the brain of a pet dog after its demise in Canada.

The study was the first to include diplomats for whom there was baseline medical testing from before their postings in Havana, so as to better compare with the tests from afterwards. Canada started implementing the practice after diplomats first started complaining of sickness.

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