华兰疫苗：截至目前，公司已签发流感疫苗批次为55批，批签发批次数量位居国内前列

Group 1 - The company holds a leading position in the production and sales of influenza vaccines, with an annual capacity of 100 million doses of quadrivalent influenza vaccine [2] - As of now, the company has issued 55 batches of influenza vaccines, ranking among the top in the country in terms of batch issuance [2]