You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Gram-negative cocci is and explain in detail?
Neisseria is a gram-negative coccus typically arranged in pairs. Vibrio cholerae are gram-negative, curved bacilli. Campylobacter is gram-negative rods, typically comma-shaped. Helicobacter is a gram-negative spiral rod. Reference: Textbook of Microbiology; Anathanarayan and panicker's; 10th edition; Page no: 230