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Avian flu H5N1 detected in American cows, human transmission possible

The Guardian — April 26, 2024, 03:00 PM UTC

Summary: Avian flu H5N1 has spread to American cows, with 33 herds in 8 states affected. The virus was found in 1 in 5 commercially bought milk samples. The US CDC confirmed one human case, possibly from cow-to-human transmission. The fatality rate is 52%, and the US government is preparing with testing, treatment, and vaccines. The risk to the general population is low, but mutations could lead to human-to-human spread.

Full article

Article metrics
Significance6.3
Scale7.0
Magnitude7.5
Potential8.5
Novelty8.0
Actionability6.0
Immediacy9.0
Positivity4.0
Credibility9.0

Timeline:

  1. [4.1]
    Virologist warns of avian flu outbreak in U.S (CTV News Winnipeg)
    6h
    Source
  2. [3.2]
    Social context crucial to stopping bird flu spread - WHO's Farrar (STAT)
    13h
    Source
  3. [2.5]
    Texas dairy farmer with bird flu had mild symptoms (NewsNation Now)
    1d
    Source
  4. [3.9]
    Study shows cows could spread bird flu, control outbreak crucial (STAT)
    1d
    Source
  5. [2.3]
    Risk of H5N1 avian flu to humans is low (Health Policy Watch)
    1d
    Source
  6. [3.5]
    First mammal-to-human bird flu case in Texas raises pandemic concerns (Irish Star)
    1d
    Source
  7. [4.3]
    Dr. Barb Petersen discovers bird flu in cows, urges wider testing (Voice of America - VOA News)
    3d
    Source
  8. [5.8]
    H5N1 pandemic timing critical, resources insufficient - scientist (RNZ)
    3d

    ScoresSource
  9. [2.3]
    Texas dairy worker with bird flu had severe eye bleeding (New York Post )
    3d
    Source
  10. [4.1]
    Texas vet discovers bird flu in cows, infecting humans (BusinessMirror)
    3d
    Source
  11. [3.6]
    CDC warns of bird flu pandemic potential, no unidentified cases (Irish Star)
    3d
    Source
  12. [4.2]
    Bird flu outbreak in US prompts human vaccine preparation (Irish Star)
    3d
    Source
  13. [5.8]
    H5N1 outbreak spreads to cattle, unclear mammalian transmission route (The Hindu)
    3d

    ScoresSource
  14. [3.4]
    First known case of mammal-to-human bird flu transmission in US (CTV News)
    3d
    Source
  15. [2.5]
    First case of mammal-to-human bird flu transmission confirmed (The Mirror)
    3d
    Source
  16. [3.3]
    Canada increases avian flu surveillance and testing due to outbreak (CP24)
    4d
    Source
  17. [2.8]
    Canada tightens import rules on US breeding cattle over bird flu (XM)
    4d
    Source
  18. [3.1]
    Canada increases avian flu surveillance and testing due to U.S. outbreak (CityNews Vancouver)
    4d
    Source
  19. [3.6]
    Bird flu in US dairy cattle raises concerns of human transmission (Ars Technica)
    4d
    Source
  20. [4.4]
    First mammal-to-human transmission of H5N1 'bird flu' confirmed (The Telegraph)
    4d
    Source
  21. [1.8]
    USDA studies meat safety amid bird flu outbreak (Agriland)
    4d
    Source
  22. [6.0]
    Bird flu detected in dairy cattle across 9 states, spreading (WIRED)
    4d

    ScoresSource
  23. [3.6]
    Dairy worker's bird flu case highlights protective gear need (The Straits Times)
    4d
    Source
  24. [3.4]
    First mammal-to-human bird flu transmission in US farmworker (CNN)
    4d
    Source
  25. [3.7]
    Bird flu outbreak in US cattle raises global health concerns (Financial Times)
    4d
    Source
  26. [4.3]
    H5N1 bird flu poses pandemic risk due to spread and deaths (Vox.com)
    4d
    Source
  27. [3.3]
    U.S. may be underreporting human bird flu cases (KERA News)
    4d
    Source
  28. [4.3]
    Bird flu circulated in US cows for months before diagnosis (XM)
    5d
    Source
  29. [3.7]
    H5N1 bird flu spreads to cows in Texas, infecting humans (STAT)
    5d
    Source
  30. [2.8]
    Missing metadata hampers tracking of bird flu virus changes (STAT)
    6d
    Source
  31. [3.4]
    Avian influenza spreading in US cattle, surveillance gaps identified (Health Policy Watch)
    6d
    Source
  32. [3.5]
    US minced beef tested for bird flu amid virus spread (The Sun)
    6d
    Source
  33. [2.4]
    Bird flu raises concerns about raw milk safety (The New York Times)
    6d
    Source
  34. [3.3]
    Bird flu in milk kills cats in US, raises transmission concerns (Agriland)
    6d
    Source
  35. [5.0]
    Avian flu infects cats and cattle in Texas and Kansas (News-Medical.Net)
    7d

    ScoresSource
  36. [2.4]
    USDA testing ground beef for bird flu, meat supply safe (Mint)
    7d
    Source
  37. [3.1]
    H5N1 avian flu in cows poses potential human risk (Vox.com)
    7d
    Source
  38. [4.1]
    Spikes of bird flu in wastewater raise concerns (CNN)
    7d
    Source
  39. [4.1]
    H5N1 in cattle, cats raises spillover concerns (Medpage Today)
    7d
    Source
  40. [4.0]
    WHO warns of bird flu spreading to cows globally (The Straits Times)
    8d
    Source
  41. [3.0]
    Health ministry monitors Avian flu, low public health risk (Hindustan Times)
    8d
    Source
  42. [5.1]
    Cats suffer H5N1 infections from raw milk, raising concerns (Ars Technica)
    8d

    ScoresSource
  43. [4.7]
    H5N1 flu virus found in U.S. milk, low human risk (The Conversation)
    8d
    Source
  44. [3.6]
    USDA testing ground beef in states with bird flu outbreaks (The Straits Times)
    8d
    Source
  45. [3.2]
    Canada on high alert for HPAI in dairy cattle (RFD-TV)
    8d
    Source
  46. [3.6]
    Health Ministry monitoring bird flu outbreaks, situation under control (BusinessLine)
    8d
    Source
  47. [2.4]
    Dairy goat operations warned of H5N1 risk (FeedStrategy.com)
    8d
    Source
  48. [3.4]
    Bird flu infects dairy cows in 8 states, no immediate threat (The Tartan)
    8d
    Source
  49. [3.1]
    Bird flu fragments found in 20% of US milk samples (Agriland)
    9d
    Source
  50. [2.6]
    WHO: Public health risk from bird flu 'low' but caution advised (AzerNews.Az)
    9d
    Source
  51. [2.0]
    Bird flu found in US milk, low human health risk (Dairy News Australia)
    9d
    Source
  52. [3.2]
    Increased bird flu testing in dairy cows to prevent outbreak (Japan Today)
    9d
    Source
  53. [3.2]
    HPAI A(H5N1) bird flu outbreak in dairy cows (The Robesonian)
    10d
    Source
  54. [4.6]
    Up to 20% of US milk may have bird flu (The Independent)
    10d
    Source
  55. [3.6]
    WHO: Low bird flu risk, monitor for animal-to-human transmission (WION)
    10d
    Source
  56. [4.8]
    Bird flu in milk raises concerns for human transmission risk (The Independent)
    11d
    Source
  57. [3.6]
    Possible bird flu pandemic threat remains low; vaccine stockpiles ready (The New Statesman)
    11d
    Source
  58. [4.3]
    Pasteurised milk safe from bird flu virus, US tests confirm (AsiaOne)
    11d
    Source
  59. [4.3]
    US intensifies cow testing to stop bird flu spread (Voice of America - VOA News)
    11d
    Source
  60. [2.7]
    No live bird flu virus found in retail milk samples (The New York Times)
    11d
    Source
  61. [3.8]
    Bird flu found in U.S. milk samples, minimal health risk (Voice of America - VOA News)
    11d
    Source
  62. [4.5]
    Lawmakers urge containment of bird flu in dairy cows (Hindustan Times)
    11d
    Source
  63. [5.2]
    Bird flu detected in US retail milk samples. Dairy impact (The Independent)
    11d

    ScoresSource
  64. [3.2]
    WHO: Low risk of H5N1 bird flu, monitor transmission (The Straits Times)
    11d
    Source
  65. [3.3]
    Avian flu outbreak in U.S. impacting poultry industry (The Santa Rosa Press Democrat)
    11d
    Source
  66. [2.9]
    WHO advises vigilance for H5N1 bird flu transmission (CTV News)
    11d
    Source
  67. [5.2]
    H5N1 virus found in 1 in 5 milk samples (The Straits Times)
    11d

    ScoresSource
  68. [3.9]
    Dr. Jerome Adams warns of bird flu risks in 2024 (New York Post )
    11d
    Source
  69. [3.9]
    20% of US retail milk samples contain bird flu (Ars Technica)
    11d
    Source
  70. [3.4]
    H5N1 bird flu in dairy cows affects milk supply (CTV News)
    11d
    Source
  71. [5.3]
    Outbreak of H5N1 bird flu in US dairy herds (Firstpost)
    11d

    ScoresSource
  72. [3.2]
    H5N1 bird flu outbreak in U.S. dairy cows addressed (CP24)
    11d
    Source
  73. [4.1]
    H5N1 avian flu spreading in mammals, human risk low (Health Policy Watch)
    11d
    Source
  74. [4.0]
    Bird flu virus fragments found in retail milk samples nationwide (The Straits Times)
    12d
    Source
  75. [5.4]
    H5N1 avian influenza detected in US milk supply (Business Insider)
    12d

    ScoresSource
  76. [4.2]
    Avian flu fragments found in U.S. milk, safety assured (The Conversation)
    12d
    Source
  77. [5.9]
    H5N1 bird flu spreading in US cattle herds, concerns rise (Business Insider)
    12d

    ScoresSource
  78. [3.3]
    USDA mandates dairy cow testing for bird flu (Agriland)
    12d
    Source
  79. [4.6]
    US faces H5N1 bird flu crisis in poultry industry (Vox.com)
    12d
    Source
  80. [5.5]
    Federal agencies struggle to coordinate response to bird flu (The Washington Post)
    12d

    ScoresSource
  81. [2.9]
    Low public risk from bird flu traces in milk (WYSO Public Radio)
    13d
    Source
  82. [3.8]
    Biden orders mandatory bird flu testing for dairy cows (The Washington Post)
    13d
    Source
  83. [3.5]
    FDA assures safe milk supply despite bird flu contamination (CTV News)
    13d
    Source
  84. [2.2]
    H5N1 bird flu infects farm worker and dairy cows (Marketscreener.com)
    13d
    Source
  85. [4.4]
    FDA detects bird flu in milk, assures safety, ongoing testing (WION)
    14d
    Source
  86. [3.4]
    FDA finds bird flu in milk, assures safety through pasteurization (XM)
    14d
    Source
  87. [4.8]
    USDA finds single H5N1 spillover event in U.S. dairy cows (STAT)
    14d
    Source
  88. [3.0]
    Inactive bird flu virus found in pasteurized milk samples nationwide (The New York Times)
    14d
    Source
  89. [3.8]
    Bird flu fragments found in US milk, low public risk (The Washington Post)
    14d
    Source
  90. [2.8]
    USDA's bird flu investigation lacks transparency, hindering global response (CNN)
    14d
    Source
  91. [4.6]
    H5N1 avian influenza spreading in US dairy cows (Ars Technica)
    15d
    Source
  92. [3.0]
    Poultry farmers in the Carolinas combat bird flu threat (Fox 46 Charlotte)
    15d
    Source
  93. [2.4]
    Bird flu A(H5N1) found in U.S. wildlife, low human risk (Deseret News)
    15d
    Source
  94. [2.9]
    Dairy industry renaming bird flu in cows for consumer confidence (Environmental Health News)
    15d
    Source
  95. [1.6]
    CFIA warns of avian flu risk in Canadian dairy cattle (Morning Ag Clips -)
    15d
    Source
  96. [3.2]
    Bird flu outbreak raises concerns about consuming poultry products (Hindustan Times)
    16d
    Source
  97. [3.4]
    Bird flu in US dairy cows, limited impact on milk production (Firstpost)
    16d
    Source
  98. [3.9]
    WHO concerned about H5N1 bird flu spread to humans (Malay Mail)
    16d
    Source
  99. [5.8]
    WHO confirms H5N1 bird flu in raw milk. Drink pasteurized (TheHealthSite)
    17d

    ScoresSource
  100. [4.9]
    H5N1 bird flu found in raw cow milk in US (India.com)
    18d
    Source
  101. [4.3]
    WHO concerned about high mortality bird flu pandemic spread (Pune Pulse)
    18d
    Source
  102. [2.8]
    Bird flu spreads among cows, U.S.D.A. expands testing coverage (The New York Times)
    18d
    Source
  103. [5.4]
    Avian influenza A(H5N1) outbreaks surge, affecting poultry and mammals (South China Morning Post)
    18d

    ScoresSource
  104. [3.4]
    USDA confirms cow-to-cow bird flu transmission in dairy herds (GMA News Online)
    18d
    Source
  105. [2.1]
    CFIA advises monitoring dairy cattle for avian influenza (CP24)
    18d
    Source
  106. [5.0]
    Increased surveillance urged for H5N1 avian influenza outbreak (Voice of America - VOA News)
    18d

    ScoresSource
  107. [2.7]
    CFIA warns of avian influenza in dairy cattle (The Globe and Mail)
    18d
    Source
  108. [3.5]
    H5N1 bird flu found in raw cow milk in US (The Sun)
    18d
    Source
  109. [4.2]
    WHO concerned about rising bird flu cases, potential pandemic (New York Post )
    18d
    Source
  110. [2.2]
    Bird flu H5N1 found in raw milk, pasteurized milk safe (Daily Mail)
    18d
    Source
  111. [4.6]
    WHO concerned about H5N1 bird flu spread to humans (IFLScience)
    18d
    Source
  112. [3.6]
    Arkansas monitors bird flu, USDA reports cases in 8 states (Pine Bluff Commercial)
    19d
    Source
  113. [4.6]
    WHO warns of highly lethal avian influenza virus H5N1 (CNBCTV18)
    19d
    Source
  114. [5.4]
    Bird flu outbreak since 2020, affecting humans, requires global response (South China Morning Post)
    19d

    ScoresSource
  115. [4.0]
    WHO concerned about H5N1 bird flu spread to humans (The Irish Sun)
    19d
    Source
  116. [3.7]
    Bird flu detected in Texas, global concern rises (Irish Examiner)
    19d
    Source
  117. [5.4]
    WHO concerned about H5N1 bird flu spread to humans (The Hindu)
    19d

    ScoresSource
  118. [5.7]
    WHO warns of high mortality H5N1 bird flu (India Today)
    19d

    ScoresSource
  119. [5.5]
    WHO warns of lethal H5N1 bird flu, urges preparedness (The Guardian)
    19d

    ScoresSource
  120. [3.9]
    High mortality rate of H5N1 avian influenza emphasized (UN News)
    19d
    Source
  121. [5.1]
    WHO concerned about H5N1 bird flu spread to new species (Mint)
    20d

    ScoresSource
  122. [4.0]
    CDC updates avian flu guidance; no travel restrictions in place (Food Safety News)
    21d
    Source
  123. [4.1]
    H5N1 bird flu spreads to US dairy cows, concerns rise (Vox.com)
    21d
    Source
  124. [4.2]
    Avian flu detected in U.S. dairy cattle, Canadian monitoring (The Globe and Mail)
    22d
    Source
  125. [2.1]
    Highly pathogenic avian influenza detected in South Dakota dairy herd (Food Dive)
    22d
    Source
  126. [3.6]
    Bird flu in U.S. dairy cows; milk supply safe (Voice of America - VOA News)
    24d
    Source
  127. [2.9]
    Second U.S. human case of bird flu reported (Slate)
    24d
    Source
  128. [3.2]
    Bird flu in U.S. dairy cows poses low public risk (The Associated Press)
    24d
    Source
  129. [4.9]
    Preparation for bird flu outbreaks stresses surveillance and vigilance (CTV News Atlantic)
    25d
    Source
  130. [5.8]
    H5N1 bird flu in U.S. cattle raises transmission concerns (STAT)
    25d

    ScoresSource
  131. [3.7]
    Avian influenza outbreaks prompt mass culling, impact poultry industry (The Guardian US)
    25d
    Source
  132. [2.8]
    US dairy farmers combat bird flu to protect livestock (XM)
    26d
    Source
  133. [4.4]
    Bird flu (avian influenza) poses global threat, affecting birds and humans (ABC News)
    26d
    Source
  134. [6.0]
    First US case of H5N1 avian flu in humans (WIRED)
    26d

    ScoresSource
  135. [4.1]
    Bird flu in cattle raises human transmission concerns (KERA News)
    26d
    Source
  136. [2.0]
    Health experts warn of bird flu in NYC park (New York Post )
    27d
    Source
  137. [2.7]
    Bird flu detected in wildlife and poultry, raising transmission concerns (Daily Mail)
    27d
    Source
  138. [3.4]
    US and Canada prepare for potential bird flu outbreak (CTV News)
    27d
    Source
  139. [2.4]
    Canada monitors bird flu, similar to U.S., with precautions (CTV News)
    27d
    Source
  140. [2.6]
    Avoid raw eggs, undercooked poultry, unpasteurized milk during bird flu (Irish Star)
    28d
    Source
  141. [4.7]
    Bird flu virus H5N1 found in NYC birds (The New York Times)
    28d
    Source
  142. [2.5]
    Cook steak well, avoid runny eggs due to bird flu (Daily Mail)
    28d
    Source
  143. [4.6]
    H5N1 cases in U.S. cattle, one human infection; Canada safe (CTV News)
    28d
    Source
  144. [3.3]
    21-year-old in Vietnam dies from H5N1 bird flu (The Sun)
    28d
    Source
  145. [5.5]
    H5N1 cases in U.S. cattle, one human infection reported (CTV News)
    28d

    ScoresSource
  146. [5.5]
    CDC confirms second US avian flu case, H5N1 spreading (ThePrint)
    29d

    ScoresSource
  147. [4.0]
    Low risk of H5N1 pandemic, global surveillance crucial (News18)
    29d
    Source
  148. [4.1]
    CDC: Low public bird flu risk, prepare for potential cases (CTV News)
    29d
    Source
  149. [3.0]
    H5N1 avian flu affects U.S. dairy cows, manageable situation (Food Institute Blog)
    29d
    Source
  150. [4.9]
    H5N1 bird flu outbreak in US sparks panic (Health shots)
    29d
    Source
  151. [5.0]
    CDC alerts on rare H5N1 transmission from cow to human (The Conversation Indonesia)
    30d

    ScoresSource
  152. [3.0]
    Highly contagious bird flu strain impacts US egg production (AzerNews.Az)
    30d
    Source
  153. [2.7]
    Highly contagious bird flu affecting US egg production, prices rising (WFXRtv.com)
    30d
    Source
  154. [2.7]
    Highly contagious bird flu impacting US egg production, prices rising (DC News Now | Washington, DC)
    30d
    Source
  155. [4.0]
    CDC alerts on bird flu in Texas dairy worker (The Hill)
    31d
    Source
  156. [4.9]
    USDA reports HPAI cases in cattle and hens (Business Insider)
    31d
    Source
  157. [2.2]
    Novonesis webinar: H5N1 Avian Influenza impact on dairy industry (Pork Magazine)
    32d
    Source
  158. [4.1]
    CDC alerts on H5N1 bird flu in cows, human infection (STAT)
    32d
    Source
  159. [4.4]
    CDC alerts on H5N1 avian flu in Texas farm worker (The Straits Times)
    32d
    Source
  160. [2.3]
    Bird flu outbreaks affect farms in six US states (Daily Mail)
    32d
    Source
  161. [4.0]
    Avian influenza affecting cows in multiple states, including Minnesota (KSTP)
    32d
    Source
  162. [3.1]
    Avian influenza infects dairy herds, enhance biosecurity measures (Food Dive)
    32d
    Source
  163. [5.9]
    H5N1 case in US raises pandemic concerns (The Indian Express)
    32d

    ScoresSource
  164. [4.1]
    Canadian dairy farmers warned about HPAI risk from U.S (Farmtario)
    32d
    Source
  165. [5.9]
    CDC confirms second US Avian Influenza case, pandemic concerns (The Indian Express)
    32d

    ScoresSource
  166. [5.8]
    H5N1 bird flu poses potential pandemic threat, experts warn (CNBCTV18)
    33d

    ScoresSource
  167. [6.5]
    Experts warn of potential deadly bird flu pandemic threat (Hindustan Times)
    33d

    ScoresSource
  168. [4.8]
    H5N1 bird flu outbreak in US, low public risk (PBS NewsHour)
    33d
    Source
  169. [5.1]
    Bird flu spreading in U.S. dairy herds, low human risk (The Straits Times)
    33d

    ScoresSource
  170. [5.8]
    Warning of potential H5N1 bird flu pandemic, deadlier than Covid (News18)
    33d

    ScoresSource
  171. [5.3]
    Rare H5N1 bird flu case in Texas raises pandemic concerns (New York Post )
    33d

    ScoresSource
  172. [6.4]
    Warning of bird flu spread to diverse species and regions (CTV News)
    33d

    ScoresSource
  173. [6.4]
    Warning of global bird flu spread and human infection risk (The Straits Times)
    33d

    ScoresSource
  174. [5.1]
    New H5N1 bird flu strain infects U.S. livestock (Livescience.com)
    33d

    ScoresSource
  175. [5.6]
    Avian Flu threat grows with second US human case (Mint)
    34d

    ScoresSource
  176. [5.4]
    Bird flu outbreak raises egg prices, affects poultry industry (Quartz)
    34d

    ScoresSource
  177. [3.7]
    Cal-Maine Foods culled birds due to avian influenza (Agriland)
    34d
    Source
  178. [4.6]
    Bird flu outbreaks in US poultry and dairy industries (The Guardian US)
    34d
    Source
  179. [3.5]
    Cal-Maine Foods paused production in Texas due to bird flu (The Manila Times)
    35d
    Source
  180. [4.5]
    Bird flu outbreaks impact poultry and humans in the US (The Washington Post)
    35d
    Source
  181. [4.4]
    Cal-Maine Foods shuts Texas plant due to bird flu (Voice of America - VOA News)
    35d
    Source
  182. [3.3]
    Cal-Maine Foods halts production due to bird flu outbreak (Marketscreener.com)
    35d
    Source
  183. [3.0]
    Cal-Maine Foods halts egg production in Texas due to bird flu (NBC DFW)
    35d
    Source
  184. [4.4]
    Texan dairy worker contracts highly pathogenic bird flu (The Hill)
    35d
    Source
  185. [5.5]
    Second U.S. human case of H5N1 bird flu reported (InsideClimate News)
    35d

    ScoresSource
  186. [3.6]
    US reports second bird flu case, cattle infected in multiple states (Agriland)
    35d
    Source
  187. [6.3]
    CDC monitors avian flu, warns of human transmission risk (The Australian Financial Review)
    36d

    ScoresSource
  188. [2.6]
    Human case of avian flu linked to infected cows (DAWN.com)
    36d
    Source
  189. [3.0]
    Avian influenza case in Texas, H5N1 strain, low public risk (Inquirer.net)
    36d
    Source
  190. [5.7]
    Low human health risk from bird flu in US (South China Morning Post)
    36d

    ScoresSource
  191. [4.7]
    One person in Texas diagnosed with bird flu (The New York Times)
    36d
    Source
  192. [4.9]
    Human case of avian flu linked to infected cows (XM)
    36d
    Source
  193. [3.9]
    Second human case of bird flu in Texas confirmed (The Washington Post)
    36d
    Source
  194. [2.3]
    Bird flu detected in Michigan dairy herd, low public health risk (WDIV ClickOnDetroit)
    38d
    Source
  195. [5.8]
    Highly virulent bird flu in dairy cows spreading across states (The Washington Post)
    39d

    ScoresSource
  196. [2.5]
    Bird flu in US cattle; 4 farms affected, no risk (ScienceAlert)
    41d
    Source
  197. [6.0]
    HPAI (H5N1) found in US cattle herds, raising concerns (ABC News)
    41d

    ScoresSource
  198. [4.1]
    HPAI H5N1 bird flu found in US cows (Ars Technica)
    42d
    Source
  199. [3.0]
    Bird flu found in U.S. dairy cows, low human risk (Livescience.com)
    42d
    Source
  200. [4.6]
    Bird flu found in US dairy cows, affecting milk production (The Guardian)
    42d
    Source
  201. [3.1]
    Avian flu found in milk from cattle, milk supply safe (CTV News)
    42d
    Source
  202. [2.8]
    Bird flu in cows not a threat to milk supply (The Associated Press)
    43d
    Source