ZURICH (Reuters) - Swiss-Irish baked goods company Aryzta said on Tuesday market conditions and prospects deteriorated sharply since mid-March due to the COVID-19 pandemic, leading to a steep decline in April revenue.The group, which is being targeted by activist investors Veraison and Cobas Asset Management, said it had taken action to maximise cash and reduce costs and had seen some early signs of recovery in May."It is now clear that COVID-19 will have a material impact on group performance..