ImmuCell Corporation provided sales guidance for the second quarter and six-month period ended June 30, 2021. The company expects to report a 53%, or $1.6 million, increase in total product sales to approximately $4.5 million during the quarter ended June 30, 2021, compared to the same period of the prior year The company expects to report a 10%, or $773,000, increase in total product sales to approximately $8.6 million during the six-month period ended June 30, 2021, compared to the same period of the prior year.