You Centers for Disease Control and Prevention (CDC) of the United States said, this Thursday (26), that the analysis of samples from the first serious case of bird flu in the country, carried out by them last week, showed mutations not seen in samples from an infected herd in the patient’s backyard .
The CDC also said that the patient’s sample showed mutations in the hemagglutinin (HA) gene — part of the virus that plays a key role in binding it to host cells. The health agency said the The risk of the outbreak to the population has not changed and remains low.
Last week, the United States reported its first serious case of the virus, in a man over 65 who suffered from severe respiratory illness and lives in Louisiana.
The patient was infected with the D1.1 genotype of the virus, which has recently been detected in wild birds and poultry in the US, and not the B3.13 genotype, which has been detected in dairy cows, humans and some poultry in several states.
To the mutations seen in the patient are rare but have been reported in some cases from other countries and, more frequently, during serious infections. One of the mutations was also seen in another serious case from British Columbia, Canada.
No transmission from the patient in Louisiana to others has been identified to date, the CDC said.
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This content was originally published in Bird flu virus mutated in the 1st serious human case in the USA, says CDC on the CNN Brasil website.
Source: CNN Brasil
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