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First birds, now mammals: how H5N1 is killing thousands of sea lions in Peru

21 Mar 2023

Peru

Avian flu has decimated the marine creatures on the country’s Pacific coastline and scientists fear it could be jumping from mammal to mammal

the Guardian / Dan Collyns

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Topic

	Birds	541
	Death / Die-off / Decline	109
	Unusual Range / Sighting	109
	Ocean / Sea	83
	Deformity / Disease / Injury	70
	Zoonotic Flu	62
	Seasonal Timing	54
	Sports / Recreation	43
	Pathogen	41
	Land	40
	Fish	39
	Land Mammals	39
	Safety	36
	Unusual Animal Behavior	35
	Weather	35
	Marine Mammals	34
	Surface Waters / Wetlands	33
	One Health	32
	Plants / Kelp	32
	Food Security	31
	Human Health	30
	Extreme Temperature	26
	Insects	23
	Invertebrates	23
	Unusual Size / Abundance	22
	Economic Impact	22
	Pets	22
	Cultural Impact	21
	Livestock	18
	Ice / Snow Change	18
	Microbes	17
	Pollution	16
	Arachnids	13
	Amphibians	10
	Reptiles	9
	Air	8
	Algal Bloom	8
	Agriculture	8
	Parasite	8
	Fisheries	7
	Paralytic Shellfish Poisoning	7
	Harvest Change	6
	Energy	5
	Fungi	5
	Buildings	5
	Sanitation	5
	Transportation	5
	Permafrost Change	4
	Water Security	4
	Acute Illness	3
	Aquaculture	2
	Debris / Trash	2
	Distemper	2
	Drought	2
	Erosion	2
	Extreme Wind	2
	Forestry	2
	Groundwater	2
	Landslide / Avalanche	2
	Thunderstorm	2
	Fire	2
	Air Quality	1
	Atmosphere	1
	Displacement	1
	Extreme Precipitation	1
	Flooding / Draining	1
	Glacier Change	1
	Rain on Snow	1
	Sea/Land Level Change	1
	Storm Surge	1
	TOURISM	1
	Trichinosis	1
	Eruption	1

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	United States	250
	Canada	69
	Iceland	18
	Norway	14
	Finland	10
	United Kingdom	7
	Russia	6
	Sweden	6
	Mexico	5
	Svalbard and Jan Mayen	3
	Australia	2
	Cambodia	2
	Ireland	2
	Chile	1
	Falkland Islands	1
	France	1
	Ghana	1
	Honduras	1
	Italy	1
	Morocco	1
	Uruguay	1

Date Range

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	-

Season

	Spring	150
	Summer	134
	Fall	125
	Winter	92

Year

	2025	13
	2024	32
	2023	43
	2022	47
	2021	44
	2020	42
	2019	74
	2018	68
	2017	57
	2016	44
	2015	30
	2014	6
	2013	9
	2012	2
	2011	2
	2009	3
	2008	1
	2005	1

Month

	January	46
	February	23
	March	46
	April	49
	May	61
	June	49
	July	45
	August	43
	September	48
	October	39
	November	39
	December	30