unvaccinated adult dogs receive two rounds of vaccinations about three weeks apart after that dogs usually receive boosters annually the basic shots for distemper hepatitis parvovirus parainfluenza and sometimes leptospirosis and coronavirus usually are administered together in a combination vaccinenvaccinated adult dogs receive two rounds of vaccinations about three weeks apart after that dogs usually receive boosters annually the basic shots for distemper hepatitis parvovirus parainfluenza and sometimes leptospirosis and coronavirus usually are administered together in a combination vaccine
The following medical conditions are some of the possible causes of Hissing in ears. There are likely to be other possible causes, so ask your doctor about your symptoms. 1  Acute ear infection.  Chronic ear infection.
These may include: 1  Otitis media with effusion. 2  Dental problems (such as teething). 3  Infection in the outer ear. 4  Foreign objects in the ear. 5  Viral infection can produce redness and inflammation. 6  A parent's or child's attempts to remove earwax. 7  Intense crying can cause redness and inflammation in the ear.