America is facing a shortage of four key medications used for common illnesses in children as virus season comes back in full force.

Officials have declared a shortage of first-line antibiotics amoxicillin and Augmentin, which are used to treat bacterial infections. Tamiflu, the most common flu medication in the US, and albuterol, an inhaler for asthma and to open airways in the lungs, are also in short supply, according to the American Society of Health-System Pharmacists.

Also children’s Tylenol shortage currently affecting Canada has carried over into the United States, pharmacists in multiple American cities have warned.