91色情片

A pig having its snout swabbed to test for viruses

91色情片

People in the US passed swine flu to pigs nearly 400 times in 12 years

A particular strain of swine flu was first recorded in people in 2009. Since then, humans have passed the strain to pigs at least 370 times in the US

A coloured scanning electron micrograph of a cell (green) infected with the omicron variant of the coronavirus (purple)

91色情片

The omicron coronavirus variant may protect against flu

A pig, the animal from which the swine flu (H1N1) originated

Swine flu (H1N1)

Pork being sold in a market in Beijing, China

Life

China has 50 per cent fewer pigs 鈥� but how many of them actually died?

A hospital full of people with flu

91色情片

Pandemics past: Seven times flu has become a mass killer

An ill woman sneezing

91色情片

Bad colds may have delayed this year’s flu epidemic in UK

91色情片

Hidden viral protein brings universal flu jab closer

Earth

New Urbanist: Our infrastructure is expanding to include animals

91色情片

How scared should we be of lab-created flu outbreaks?

91色情片

Google Flu Trends gets it wrong three years running

The search giant's much-hyped flu tracker has been way out on its predictions for years 鈥� raising concerns over our reliance on big data

91色情片

Virus that caused flu pandemic dominates again

91色情片

Flu vaccine helps unravel complex causes of narcolepsy

91色情片

US shutdown threatens response to disease outbreaks

91色情片

Evidence that Tamiflu reduces deaths in pandemic flu