Among the bustle of morning trade at Yanqing food market, one corner remains quiet. Wedged between the beef and fish counters, where traders in galoshes cheerily hack the heads off wriggling carp, the poultry stalls are boarded, their freezers taped shut. A handwritten notice from the management offers: "All chicken products have stopped being sold, sorry for any inconvenience."
As the death toll from H7N9 avian flu rises, public concern over health and food safety is growing too. The full impact on China's massive poultry sector is yet to be realised, but early indications point to widespread damage. Qiu Baoqin, of the National Poultry Industry Association, told AFP that H7N9 had been a "devastating blow".
There are 33 cases of H7N9 in Shanghai and its neighbouring provinces with nine fatalities. Microbiologists from the Chinese Academy of Sciences attribute the strain to a mingling of viruses from migrating birds with those found in chickens, pigeons and ducks in the Yangtze river delta.
In sample tests from fowl markets, 34 have proved positive for H7N9. The cities of Shanghai, Hangzhou and Nanjing have shut live poultry markets, culling hundreds of thousands of birds in an attempt to curb the spread.
Last year China produced more than 18m tonnes of poultry, over 20% of its total meat output, according to the statistics bureau. But as markets opened after the national Qingming holiday shares in companies tied to the industry tumbled – Shandong Minhe Animal Husbandry, a poultry producer, lost 9.5% on 8 April.
In Shanghai, some schools have stopped serving chicken. McDonald's slashed the price of its McNugget meal from 36 yuan (£3.60) to 20 yuan (£2).
"I normally buy chicken or duck several times a month, but since the bird flu I stopped buying them completely," said Ms Chen, a shopper at Yanqing street market in Shanghai.
Bird flu is the latest in a string of food scandals to hit the city of 23 million residents in recent weeks: in March, 16,000 dead pigs were found floating in tributaries supplying Shanghai's drinking water. On 1 April, 250kg of dead fish appeared in a canal in the suburbs.
The price of vegetables at Yanqing market have spiked accordingly. Chen says she will pay these premium prices rather than buy meat.
"We're also avoiding pork," she said, adding: "Actually my family and I don't dare to eat anything these days."